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 of manqué
1770–80; < French, past participle of manquer to lack, be short of < Italianmancare, derivative of manco lacking, defective < Medieval Latin,Late Latinmancus (Latin: feeble, literally, maimed, having a useless hand, probably derivative of manus hand)
1778, from French manqué (fem. manquée), past participle of manquer "to miss, be lacking" (16c.), from Italian mancare, from manco, from Latin mancus "maimed, defective," from PIE *man-ko- "maimed in the hand," from root *man- "hand" (see manual (adj.)).