Definition of unpaste in English:

unpaste

Pronunciation /(ˌ)ʌnˈpeɪst/

verb

  • with object To remove the paste from; especially to cause (a piece of paper) to become unstuck by removing the adhesive keeping it in place.

Origin

Late 16th century; earliest use found in John Florio (1553–1625), author and teacher of languages. From un- + paste.