Word Origin & History
blankearly 13c., from O.Fr. blanc "white, shining," from Frankish *blank "white, gleaming," of W.Gmc. origin (cf. O.N. blakkr, O.E. blanca "white horse;" O.H.G. blanc, blanch; Ger. blank "shining, bright"), from P.Gmc. *blangkaz "to shine, dazzle," from PIE base *bhel- (1) "to shine, flash, burn" (see
EXPAND bleach). Originally "colorless," meaning "having empty spaces" evolved c.1400. Sense of "void of expression" (a blank look) is from 1550s. The noun in the sense of "empty space" (in a document, etc.) is from c.1570.
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