English
anti-humour
From anti- + humour.
Proto-Indo-European *h₂ent- ‘forehead’
Proto-Indo-European *h₂énts ‘forehead’
Proto-Indo-European *h₂énti ‘opposite’
Ancient Greek ᾰ̓ντῐ́ ‘over against, opposite’
English anti-
Proto-Indo-European *wegʷ- ‘wet, moist’
…
Latin ūmeō ‘to be moist, wet or damp’
Latin hūmor ‘liquid, fluid, humour’
Old French humor
Middle English humour ‘A "cardinal humour"’
English humour
Today it means
noun A form of humour that subverts expectations, often by being deliberately unfunny or surreal.
Language periods are conventional ranges, not dates for this word.
Etymograph / anti-humour