at one's wit's end



at one's wit's end

Also, at wits' end. Completely puzzled and perplexed, not knowing what to do. For example, I've tried every possible source without success, and now I'm at my wit's end. This idiom, which uses wit in the sense of "mental faculties," appeared in Piers Ploughman (c. 1377).
See also: end

Common Names:

NameGenderPronouncedUsage
Finlay-Irish, Scottish, English
Marsaili-Scottish
NicholasNIK-ə-ləs (English), nee-ko-LAH (French)English, French
Diwata-Tagalog
Hro&Eth;Gar-Anglo-Saxon
Arnaldo-Italian