from some (obsolete) base akin to that of aucheo (to boast) and 2172; to vaunt (in a good or a bad sense):

KJV-- (make) boast, glory, joy, rejoice.

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2172 euchomai (yoo'-khom-ahee);

middle voice of a primary verb; to wish; by implication, to pray to God:

KJV-- pray, will, wish.