Alternative forms 
- (UK) enPR: läk, IPA: /lɑːk/, X-SAMPA: /lA:k/
- (US) enPR: lärk, IPA: /lɑːɹk/, X-SAMPA: /lA:rk/
Audio (US) (file)
- Rhymes: -ɑː(r)k
Etymology 1 
From Middle English larke, laverke, from Old English lāwerce, lǣwerce, lāuricæ, from Proto-Germanic *laiwazikōn (compare dialectal West Frisian larts, Dutch leeuwerik, German Lerche), from *laiwaz (borrowed into Finnish leivo, Estonian lõo).
lark (plural larks)
- Any of various small, singing passerine birds of the family Alaudidae.
- Any of various similar-appearing birds, but usually ground-living, such as the meadowlark and titlark.
- One who wakes early; one who is up with the larks.
- (species in Alaudidae): woodlark, skylark, magpie-lark, horned lark, sea lark, crested lark, shorelark
Related terms 
- To catch larks.
- to go larking
- lark on Wikipedia.Wikipedia
- Alaudidae on Wikimedia Commons. Wikimedia Commons: Alaudidae
- Alaudidae on Wikispecies. Wikispecies: Alaudidae
Etymology 2 
Origin uncertain, either
- from a northern English dialectal term lake/laik (“to play”) (around 1300, from Old Norse leika (“to play (as opposed to work)”)), with an intrusive -r- as is common in southern British dialects; or
- a shortening of skylark (1809), sailors' slang, "play roughly in the rigging of a ship", because the common European larks were proverbial for high-flying; Dutch has a similar idea in speelvogel (“playbird, a person of markedly playful nature”).
lark (plural larks)
- A romp, frolic, some fun.
- (Can we find and add a quotation of Charles Dickens to this entry?)
- A prank.
Derived terms 
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
- “lark” in Douglas Harper, Online Etymology Dictionary (2001).
- Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967