Factory
late 16th century (in factory (sense 2)): via Portuguese feitoria from medieval Latin factoria, from Latin factor (see factor). factory (sense 1) based on late Latin factorium, literally ‘oil press’.
wiktionary
From Latin factorium(“place of doers, makers”). Equivalent to factor + -y. Compare Middle French factorie; Italian fattoria, Spanish factoría, Portuguese feitoria, Dutch factorij.
etymonline
factory (n.)
1550s, "estate manager's office," from French factorie (15c.), from Late Latin factorium "office for agents ('factors')," also "oil press, mill," from Latin factor "doer, maker," agent noun from past-participle stem of facere "to do" (from PIE root *dhe- "to set, put"). From 1580s as "establishment of merchants and factors in a foreign place." Sense of "building for making goods" is first attested 1610s. Factory farm is attested from 1890.
