- blanch (v.1)
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- c. 1400, transitive, "to make white, turn pale," from Old French blanchir "to whiten, wash," from blanc "white" (11c.; see blank (adj.)). Originally "to remove the hull of (almonds, etc.) by soaking." Intransitive sense of "to turn white" is from 1768. Related: Blanched; blanching.
- blanch (v.2)
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- "to start back, turn aside," 1570s, variant of blench. Related: Blanched; blanching.