M / mălĕfīdus
adjective

mălĕfīdus

fem. mălĕ-fīda · neut. mălĕ-fīdum
adj., unfaithful, faithless as adjective
adj., unfaithful, faithless, Boëth. Cons. Phil. 1, 1; 1, 17. (In class. Lat. always separately, as, capiti male fido, Ov. Ib. 85.)