sb. and a. Gram. Also 78 triptot. [ad. L. triptōta (pl.) nouns that have only three case-endings, a. Gr. τρίπτωτα, pl. neuter of τρίπτωτο-ς with three case-endings, f. τρι-, TRI- + πτωτός falling (πτῶσις case). Cf. F. triptote.] a. sb. A noun (or other word) used in three cases only. b. adj. Having only three cases.
1612. Brinsley, Pos. Parts (1669), 102. Q. What words do you call Triptots? A. Such as have but three cases in the singular number.
1656. Blount, Glossogr., Triptote (triptoton), a Noun having but three cases.
1658. in Phillips.
1751. Wesley, Wks. (1872), XIV. 40. Triptots, which have three Cases; as, opis, opem, ope.
1886. Encycl. Brit., XXI. 651/1. The nominative of the so-called triptote nouns has, as in classical Arabic, the termination u.