Origin: 1425–75; late Middle English < Latin expedītus (past participle of expedīre to disengage, set the feet free), equivalent to ex-ex-1 + ped- (stem of pēs) foot + -ītus-ite2
late 15c., from L. expeditus, pp. of expedire "make fit or ready, prepare," lit. "free the feet from fetters," hence "liberate from difficulties," from ex- "out" + *pedis "fetter, chain for the feet," related to pes (gen. pedis) "foot" (see foot). Cf. Gk. pede "fetter." Related: