Lewis & Short

mŏrētārĭus, a, um, adj. [moretum], of or belonging to the dish moretum (postclass.): moretaria condimenta, Apic. 6, 4.
Subst.: mŏrētārĭum, ii, n., the dish moretum (made of garlic, rue, vinegar, oil, etc.), Don. ad Ter. Phorm. 2, 2, 4.