(v.) To be formal or affected in dress or manners; -- often with up.

adorn array beautify bedeck bedizen blazon color dandify deck deck out decorate dizen doll up dress dress up embellish emblazon embroider enrich fancy up fig out fix up furbish garnish get up grace groom gussy up ornament overdress paint plume prank prank up preen prettify pretty up primp up prink prink up rag out redecorate redo refurbish set off set out slick slick up smarten smarten up spiff spruce up titivate trick out trick up trim