Etymology
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lark + -ish
Adjective
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larkish (comparative more larkish, superlative most larkish)
- joky; mischievously high-spirited
2009 June 19, Nate Chinen, “Territory of Two Norwegian Trumpeters”, in New York Times[1]:What kept his devices from feeling larkish was a sly vocal intimation: even at his most weirdly expressive, Mr. Henriksen seemed to be speaking or singing through his horn.