1[with object]To adorn, beautify; to titivate. Chiefly refl. (used chiefly of men). Formerly also with †it, with reflexive meaning. Now historical.
2[no object]To adorn or beautify oneself; to primp. Used chiefly of men.
Origin
Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From French adoniser from Adonis, the name of Adonis, also as noun in sense ‘handsome young man’ + -iser.