A.three-edged or three-pointed, “αἰχμή” AP6.167 (Agath.); τ. δόρυ, of the trident, Max.Tyr.10.8; with three mouths, “Ῥοδανός” Str.4.1.8.
II.τρίστομον, τό, dub. sens., prob. place-name, in PTeb.112.2, al. (ii B. C., cf. ii p.405); “σιτολόγοιΤριστόμου” Ostr.1097 (ii A. D.), cf. BGU1072 iii 2 (ii A. D.), etc.