Whiten
\Whit"en\, v. i. [imp. & p. p.
Whitened; p. pr. & vb. n.
Whitening.] [OE. whitenen; cf. Icel. hv[imac]tna.] 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.
[1913 Webster]