Meaning

verb dress very carefully and in a finicky manner

verb put on special clothes to appear particularly appealing and attractive

originPerhaps alteration (due to primp) of prank (“to deck, adorn”), from Middle English pranken (“to trim”), or from Middle Dutch prinken (“to deck for show, parade in fine apparel”) (from pronk (“show, display”) or from Middle Low German prunken (from prank (“display”)). Cognate with Middle Dutch pronken (“to flaunt”), German Prunk (“a show, parade, splendour”), Danish and Swedish prunk.

Etymology from Wiktionary, CC BY-SA 3.0