forge (subs.) Copy link Outline 1. fornax, ācis, f.2. offĭcīna (workshop) • forge (subs.): 1. fornax, ācis, f.: v. furnace. 2. offĭcīna (workshop): the ponderous f.s of the Cyclops, graves Cyclopum of., Hor. Od. 1, 4, 8: black-smiths' (lit. copper-smiths') f.s, aerariorum of., Plin.: v. workshop.