idolatry (n.)

"worship of idols and images," mid-13c., from Old French idolatrie (12c.), from Vulgar Latin *idolatria, contraction of Late Latin idololatria (Tertullian), from Ecclesiastical Greek eidololatria "worship of idols," from eidolon "image" (see idol) + latreia "worship, service" (see -latry).