Unique words

Albanian

• hundekuq: a bulbous nose, red at the tip.
• kacadre: a moustache with turned-up ends.
• vetullhen: an eyebrow arched like the crescent moon.
• pagezuar: dying before being able to enjoy the happiness that comes with getting married or seeing one’s children get married.

Bosnian

• gunj: a vest worn by the shepherds during winter, made from sheep skin.

Catalan

• seny: a combination of well-pondered perception of situations, level-headedness, awareness, integrity and right action.
• coentor: it literally means "stinging" but used in a figurative sense to describe something or someone gaudy and wealthy at the same time.
• festejar: spending time alone with the person one loves in a romantic way, traditionally before getting married.
• atzucac: dead end; may refer to a situation without apparent solution as well. 
• goig: intense feeling of pleasure, satisfaction or happiness. There is also the expression "fer goig", meaning to be pleasant or nice to look at, used when people are well-dressed, have had their hair or make-up done in a special and good-lookin way. 

Croatian

• pivopija: someone who likes to drink beer; literally a "beer drinker".

Czech

• prozvonit: to call someone with the intention of leaving one's number in their device's memory.
• ňufánek: a toy that is very cute and cuddly; the word can refer to a child who loves to cuddle.

Danish

• hyggelig: an adjective for something warm, friendly, cosy, comfortable. 

Dutch

• gezellig: it may be translated as a convivial, cosy, fun, quaint, or nice atmosphere, but can also connote belonging, time spent with loved ones, the fact of seeing a friend after a long absence, or general togetherness. 
• broodje-aap: an awful, often invented story that is told as being true, thus becoming a myth (literally, a monkey-meat sandwich).
• regelneef: a person who loves organizing even without being asked to.

English

• higgledy-piggledy: disordered, jumbled, not neat and tidy. Probably used initially with reference to the disordered herding together of pigs.
• dilly-dally: to move or act too slowly.

Estonian

• koerailm: cat-and-dog weather; really bad weather.
• kalailm: good weather for fishing.

Finnish

• hiukaista: to feel hungry for something salty.
• poronkusema: the distance equal to how far a reindeer can travel without a comfort break, which is about 5 kilometers (literally, reindeer’s piss).
• kuunsilta: the long reflection of the moon when it is low in the sky and shining on the calm surface of a lake (literally, moon bridge).
• kaipaus: longing or nostalgia, very similar to the Portuguese concept of "saudade".
• fika: used to describe a pause for tea or coffee during the working day.

French

• yaourt: English pop music sung without any understanding of the meaning; singing to create something that sounds like English pop music but actually is not (literally, yoghurt).
• metro-boulot-dodo: the daily grind (literally, ‘tube-work-sleep’).
• chabrot: to put red wine in your soup, when there is little soup left.
• flâner: act of strolling the streets of a city out of pleasure.

Galician

• morriña: longing of our homeland, Galicia, when one is away from it.
• luscofusco: moment of the day, between the day and the night when the light has almost disappeared and we see the things like shadows.

Georgian

• genatsvale: a word used in the same as "dear", it means to appreciate very much. 
• shemomedjamo: to eat even though one is already full because the food tastes so good.

German

• Zechpreller: someone who leaves without paying the bill.
• Ohrwurm: a catchy tune that gets stuck in the brain or a tune that rapidly obsesses an entire population (literally, an ear worm).
• Torschlusspanik: the fear of diminishing opportunities as one gets older, especially the fear of not having a relationship or becoming too old for a baby.
• Gemütlichkeit: feeling of comfort, coziness, warmth, as in one's home.
• Schadenfreude: pleasure derived from another person’s misfortune. 
• Fernweh: desire to see distant places, travel, be far away from your home.
• Schilderwald: refers to a street where one might get lost due to the existence of many road signs (literally, signs forest).
• Fahrvergnügen: joy of driving, pleasure derived from driving (literally, driving-pleasure).
• Frühjahrsmüdigkeit: state of fatigue, lowered energy, or depression associated with the onset of spring.

Greek

• μάγκας/mangas: is a young man who is self-confident and behaving in a somehow macho way. It may have a positive connotation of respect and even admiration by others at times, although there is also the popular expression 'don't be a mangas', showing rejection towards this kind of behaviour.
• μεράκι/meraki: doing something with soul, creativity, or love: putting something of oneself into what is being done.
• φιλότιμος/filotimo:  this adjective describes 

  an array of virtues ranging form intense feeling of personal honour and dignity, to respect towards family members, friends and society overall, as well as acting right. 

• λεβέντης/leventis: handsome, brave and good-hearted young man.

Hungarian

• csókolgat: to shower with kisses.
• verbunkos: a dance performed to persuade people to enlist in the army.

Icelandic

• eldhus-fifi (Old Icelandic): an idiot who sits all day by the fire.
• af-vegar (Old Icelandic): fallen on the back and unable to rise.
• féauðnu-maðr (Old Icelandic): a man lucky with his sheep.
• gluggaveður: weather which is nice to look at through the window but not nice to be out in (literally, window-weather).

Irish

• plubairnigh: a verb specifically used to describe that distinctive thick, bubbling sound that porridge makes when it is boiling. An example: "Bhí an leite ag plubairnigh sa phota" ("the porridge was 'plubairnigh-ing' in the pot").

Italian

• mammismo: maternal overprotection and excessie care that continues into adulthood.
• abiocco: from the verb 'abioccare', abbiocco describes one's wish to lie down and rest, mostly after eating and drinking with abundance.
• gattara: a woman catlover who feeds alley cats or spends time with domestic cats.
• meriggiare: to rest in the shade during midday and the hottest afternoon hours. 

Korean

• 사랑해/saranghae: translates as "I love you", or "let's live until we die together" (literally, "sa-" means die; "rang-" means together and "hae" means doing).

Latvian

• vientuliba: loneliness, solitude.
• slapjdraņķis: simultaneous rain and snow.

Lithuanian

• žlugtas: laundry which is watered before washing.
• brekšti: a verb which is used to describe a moment between the night and the dawn.
• rymoti: to lean on something (arms, fence, etc.) for some time.
• brukti: to suggest something in a very annoying and irksome way.
• davatka: a person who likes to gossip.

Norwegian

• kram snø: sticky snow, excellent for making snow-balls and snowmen.
• fiskevaer: good weather for fishing.
• sjøstygg: being so ugly that the tide won’t come in, if one's on the shore (literally, sea ugly).
• giftekniv: someone trying to get two people married.
• pålegg: whatever you put on your bread or bagel.
• guovssahasat: northern/polar lights.
• oppholdsvær: weather that is excellent, but good enough to allow spending some time outside (i.e., not too windy, not too cold, not too rainy).

Portuguese

• chico-esperto: used to describe someone who is smart enough to take advantage of situations even if damaging someone else's interests.
• saudade: homesickness, longing, missing, heartache, nostalgia.
• desenrascanço: capacity to get oneself out of trouble or to improvise creative solutions to seemingly impossible situations.
• compincha: someone who is always down for fun or drinks.

Romanian

• dor: a feeling of melancholy as a result of the desire to see someone or something one loves.
• doină: a kind of musical folklore that expresses a feeling of wailing, melancholy, grief, revolt, love.

Russian

• почемучка/pochemucka: a person who always asks something.
• дерябнуть/deryabnut’:  to drink quickly in order to warm up.
• дакать/dakat’: to keep saying yes.
• теплушка/teplushka: heated goods van used for carrying people.
• обкуриться/obkurit'sya: to make oneself ill by excessive smoking.
• залипать/zalipat': to stand staring at something; it implies at times a state of deep reflection.

Serbian

• inat: spite, defiance; when you do or do not do something just to prove someone else wrong even if at one's detriment.
• merak: happy and content feeling derived from the simplest and everyday things.
• dangubiti: to spend the whole day doing pointless things.
• праскозорје/praskozorje: explosion of dawn. 

Slovak

• prezvoniť: to call someone with the intention of leaving one's number in their device's memory.
• škodoradosť: pleasure derived by someone from another person's misfortune.

Slovenian

• zlovešč: someone who predicts harm/evil.

Spanish

• chupóptero: a person who works little but who economically parasites an organisation, company or another person.
• piropo: a compliment paid to someone, especially referring to someone's beauty. It may range from polite to raunchy.
• vergüenza ajena: feeling of shame on behalf of someone else.
• sobremesa: to sit after an abundant meal in company of other people so as to chat and rest.
• malaje: a disagreeable person.
• empalagoso: sickly sweet.
• matasuegras: twisted paper tube with a mouthpiece that unscrews when blown and scares as a joke, used mainly at birthday parties.
• duende: the ability to move someone emotionally through a work of art or a musical piece. It is very related to flamenco music and it is at times thought of as an inborn ability.
• chapuza: work done badly and without technical knowledge.

Swedish

• lappsjuka: a melancholy caused by isolation.
• fika: coffee break or an overall word for buns and other snacks that are eaten on coffee breaks.
• lagom: not too little or not too big, just right or in the right measure.
• myrornas krig: when the television screen turns black and white with spots and it looks like ants are battling (literally, ants war).
• mångata: the glimmering, roadlike reflection that the moon creates on water.
• gökotta: refers to waking up early, often at dawn when first sing and chirp. 

Welsh

• cwtch: an affectionate hug - provide a 'safe' place in someone's arms, a rather special one, blessed with the warmth and generosity of the Welsh, a truly free flowing expression of love and acceptance.
• hiraeth: deep longing for something, especially one's home.
• yakamoz: any kind of light reflecting onto water.