obligate

First attested in 1533; borrowed from Latin obligātus, perfect passive participle of obligō, see -ate (verb-forming suffix). Doublet of oblige, taken through French.

Partly inherited from Middle English obligat(e) (“bound (by any obligation), obliged”), partly directly borrowed from Latin obligātus, see Etymology 1, -ate (adjective-forming suffix) and -ate (noun-forming suffix) for more.