Word Origin & History
1797, "hiding place," from Fr. Canadian trappers' slang, "hiding place for stores" (1660s), a back formation from Fr. cacher "to hide, conceal" (13c., O.Fr. cachier), from V.L. *coacticare "store up, collect, compress," freq. of L. coactare "constrain," from coactus pp. of cogere "to collect" (see
). Sense extended by 1830s to "anything stored in a hiding place."