Entry 1 sense Webster, 1913 Boxen /(bŏks"'n)/ · Box·en · IPA 01 a. Made of boxwood; pertaining to, or resembling, the box (Buxus). 1. Made of boxwood; pertaining to, or resembling, the box (Buxus).[R.] “The faded hue of sapless boxen leaves.” — Dryden.