Tĕt'rap-tōte or Te-trāp'tōte, n.

noun

(Synop., § 130), n. [Fr. tétraptote, Lat. tetraptotum, Gr. τετράπτωτον, from Gr. τέτρα, four, and πτωτός, falling, πτῶσις, a falling, a case, from πίπτω, to fall.] (Gram.) A noun that has four cases only, as the Latin ast(us).