Noah Webster's Dictionary 1. (v. i.) To grow white; to turn or become white or whiter; as, the hair whitens with age; the sea whitens with foam; the trees in spring whiten with blossoms. 2. (v. t.) To make white; to bleach; to blanch; to whitewash; as, to whiten a wall; to whiten cloth.

Multi-Version Concordance Whiten (1 Occurrence) Mark 9:3 His clothing became glistening, exceedingly white, like snow, such as no launderer on earth can whiten them. (WEB WEY ASV DBY WBS YLT NAS)