Coptic rhymes with:
optic, synoptic, antiseptic, apocalyptic, cryptic, ecliptic, epileptic, fiberoptic, optic, peptic, septic, skeptic, synoptic, triptych
Coptic sounds like:
cabot's, cabotage, capote's, cassavetes, caveats, cavities, cespedes, chavitz, chefitz, cheviots, chipetas, cockpits, copetas, coppedge, covets, covitz, cupids