adjective
- committed or obligated to repay a monetary loan: He was indebted to his friend for a large sum.
- obligated for favors or kindness received: He was indebted to her for nursing him through pneumonia.
adjective (postpositive)
- owing gratitude for help, favours, etc; obligated
- owing money
late 14c., endetted “owing money,” past participle of endetten “to indebt, oblige,” from Old French endetter “to involve in debt,” from en- “in” (see in- (2)) + dette “debt” (see debt). Figurative sense of “under obligation for favors or services” first attested 1560s. Related: indebt; indebtedness. Latin indebitus meant “not owed, not due.”