I. (ˌ)kā-ˈō, ˈkā-(ˌ)ō noun
Etymology: pronunciation of KO, abbreviation
Date: 1920
: knockout 1
II. transitive verb
( kay·oed ; kayo·ing )
Date: 1921
: knock out
I. (ˌ)kā-ˈō, ˈkā-(ˌ)ō noun
Etymology: pronunciation of KO, abbreviation
Date: 1920
: knockout 1
II. transitive verb
( kay·oed ; kayo·ing )
Date: 1921
: knock out
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003