adjective having failed, missed, or fallen short, especially because of circumstances or a defect of character; unsuccessful; unfulfilled or frustrated (usually used postpositively): a poet manqué who never produced a single book of verse.
Origin:
1770–80; < French, past participle of manquer to lack, be short of < Italian mancare, derivative of manco lacking, defective < Medieval Latin, Late Latin mancus (Latin: feeble, literally, maimed, having a useless hand, probably derivative of manus hand)