STEP Liddell–Scott–Jones: Γερασηνός

Γεργασηνός, -ή, -όν,

Gerasene, of Gerasa, not the G. of Decapolis, 30 m. S.E. of the Lake, but a Gerasa or Gergesa (perh. the mod. Kersa) on E. shore; as subst., pl. οἱ Γ., Mrk.5:1, Luk.8:26, 37 (Γεργεσηνῶν, RV, mg. 1; Γαδαρηνῶν, RV, mg. 2).†

(From Abbott-Smith. LSJ has no entry)