The story
The verb is derived from re- (prefix meaning ‘again, anew’) + jig (“to move briskly; to move with jerks or vibrations”). The noun is derived from the verb.
Etymology from Wiktionary, CC BY-SA 4.0.
rejig
re·jigToday it means: To rearrange or tweak (something), especially in order to improve it or make it suitable for some purpose. Full definition →