One poor widow (mia chēra ptōchē). Luke has penichra, a poetical late form of penēs. In the N.T. the ptōchos is the pauper rather than the mere peasant, the extreme opposite of the rich (plousioi). The money given by most was copper (chalkon).
Two mites (duo lepta). Leptos means peeled or stripped and so very thin. Two lepta were about two-fifths of a cent.
Farthing (kodrantes, Latin quadrans, a quarter of an as).