γελαστής
From LSJ
ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
English (LSJ)
οῦ, ὁ,
A laugher, sneerer, S.OT1422:—fem. γελάστρια, Sch.Ar.Th.1068.
German (Pape)
[Seite 479] ὁ, Lachet, Verlacher, Soph. O. R. 1422; Ath. VI, 246 c.