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Whiten

//ˈ(h)waɪ̯.tən// name, verb

Definitions

Proper Noun

1
A surname.

Verb

1
(To cause) to become white or whiter; to bleach or blanch. ergative
"Age had whitened his hair."
2
turn white wordnet
3
To increase the security of an iterated block cipher by steps that combine the data with portions of the key.
4
To normalize data so that the covariance matrix becomes the identity matrix; i.e., to remove correlations so each variable has unit variance.

Etymology

From Middle English whitenen, whitnen, from Old Norse hvítna (“to whiten”), from Proto-Germanic *hwītnōną (“to whiten, become white”), from Proto-Indo-European *kwind-, *kwint- (“bright”), equivalent to white + -en. Cognate with Icelandic hvítna (“to whiten”), Swedish vitna, hvitna (“to whiten”), Danish hvidne (“to whiten”). Compare Old English hwītian (“to whiten, become white, be white, make white”).

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