Strong's G1070 · Greek

γελάω

gelao · ghel-ah'-o

of uncertain affinity; to laugh (as a sign of joy or satisfaction)

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 γελάω , -ῶ , [in LXX chiefly for צחק , שׂחק ;] to laugh : Lk 6:25 ; fut., γελάσω ) (M, Pr. , 154), ib. 21 (cf. κατα-γελάω ).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain