sighten

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English

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Etymology

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From sight +‎ -en.

Verb

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sighten (third-person singular simple present sightens, present participle sightening, simple past and past participle sightened)

  1. (transitive, calico-printing) To add a fugitive colour to (a paste), to enable the printer to determine whether the figures are well-printed or not.
    • 1830, Samuel Frederick Gray, The Chemistry of the Arts:
      The iron liquor should be sightened with logwood.
    • 1849, Edward Andrew Parnell, Dyeing and Calico-printing, page 132:
      Annexed is a specimen of calico in this stage of the process, the mordant on which is red liquor, “sightened” with a little decoction of peach-wood or similar dye-stuff.

Derived terms

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Anagrams

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