Anc. Pros. Usually in Lat. form trihemimeris (also trie-). [ad. mod.L. trihēmimeris, ad. Gr. type *τριημιμερής consisting of three halves, f. τρι- ἡμι- half + μέρ-ος part: cf. HEPHTHEMIMER, PENTHEMIMER.]
A group or catalectic colon of three half-feet; esp. as constituting the first part of a hexameter, preceding the cæsura. Hence Trihemimeral a., applied to a cæsura occurring in the middle of the second foot.
1704. J. Harris, Lex. Techn., I. Triemimeris, is a Branch of the Cæsura of a Latine Verse, when after the first Foot of the Verse there remains an odd Syllable, which helps to make the next Foot.
1871. Public Sch. Lat. Gram. (1876), 529. The next best form is obtained by uniting with the hephthemineral cæsura the trihemimeral, in the middle of the second foot. Ibid., 550. In both verses the rhythm is helped by the trihemimeris.
