sighten — English Dictionary

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Language

sighten

Verb

To add a fugitive colour to (a paste), to enable the printer to determine whether the figures are well-printed or not.
Usage
- Transitive
Examples

The iron liquor should be sightened with logwood.

More examples (1)

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.

Word forms

sightenssighteningsightenedsightened

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