Strong’s Greek
G1071 — gelos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
γέλως
gelos — pronounced ghel'-os
from 1070; laughter (as a mark of gratification):--laughter. see GREEK for 1070
1 occurrence in the KJV.
James 4:9
Be afflicted, and mourn, and weep: let your laughter be turned to mourning, and your joy to heaviness.