sb. and a. Gram. Also 7–8 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.

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1612.  Brinsley, Pos. Parts (1669), 102. Q. What words do you call Triptots? A. Such as have but three cases in the singular number.

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1656.  Blount, Glossogr., Triptote (triptoton), a Noun having but three cases.

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1658.  in Phillips.

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1751.  Wesley, Wks. (1872), XIV. 40. Triptots, which have three Cases; as, opis, opem, ope.

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1886.  Encycl. Brit., XXI. 651/1. The nominative of the so-called ‘triptote’ nouns has, as in classical Arabic, the termination u.

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