Cache
late 18th century: from French, from cacher ‘to hide’.
wiktionary
From French cache (as used by French Canadian trappers to mean "hiding place for stores"), from the verb cacher.
cache (plural caches)
etymonline
cache (n.)
1797, "hiding place," from French Canadian trappers' slang, "hiding place for stores and provisions" (1660s), a back-formation from French cacher "to hide, conceal" (13c., Old French cachier), from Vulgar Latin *coacticare "store up, collect, compress," frequentative of Latin coactare "constrain," from coactus, past participle of cogere "to collect," literally "to drive together," from com- "together" (see co-) + agere "to set in motion, drive; to do, perform" (from PIE root *ag- "to drive, draw out or forth, move"). Sense extended by 1830s to "anything stored in a hiding place."
