Abbott-Smith Manual Greek Lexicon
δίστομος (G1366)
3 δίστομος , -ον ( δίς , στόμα ), [in LXX: Jg 3:16 , Ps 149:6 , Pr 5:4 ( פִּּיּוֹת ), Si 21:3 * ;] of rivers and roads, double-mouthed, double branching . Of swords (Eur.; LXX, ll. c.), two-edged : He 4:12 , Re 1:16 2:12 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain