to celebrate

from εὖ and φρήν; to put (middle voice or passively, be) in a good frame of mind, i.e. rejoice:--fare, make glad, be (make) merry, rejoice.

a primitive root (compare חָגָא, חוּג); properly, to move in acircle, i.e. (specifically) to march in asacred procession, to observe afestival; by implication, to be giddy; celebrate, dance, (keep, hold) a (solemn) feast (holiday), reel to and fro.