triptote

From Latin triptotum, from Ancient Greek τρίπτωτος (tríptōtos), from τρι- (tri-, “three”) +‎ πίπτω (píptō, “to fall”) +‎ -τος (-tos, verbal adjective–forming suffix), influenced by the verbal noun πτῶσις (ptôsis, “inflection”).

triptote (plural triptotes)

1. (grammar) In grammar, a noun which has three cases.

In Modern Standard Arabic, nouns belong to triptotes or diptotes, or can be indeclinable.

• triptotic

• diptote