The definition of choke is to cut off oxygen, to be unable to breath, to block something, to become unable to perform at a crucial point.
(verb)See choke in Webster's New World College Dictionary
transitive verb choked, choking
Origin: ME choken, aphetic < OE vt. aceocian, to choke, prob. < base of ceoke, jaw, cheek
intransitive verb
noun
See choke in American Heritage Dictionary 4
verb choked choked, chok·ing, chokes verb, transitive
Origin:
Origin: Middle English choken
Origin: , short for achoken
Origin: , from Old English āceōcian
Origin: : ā-, intensive pref.
Origin: + cēoce, cēace, jaw, cheek
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