Where does “uncrease” come from?

uncrease (English) comes from English crease, from English creast, from Middle English crest — ridge, crest.

uncrease (English): to remove the crease from

Definitions

  1. to remove the crease from

Ancestry of “uncrease”, step by step

uncrease traces back through two separate lines of ancestry.

via English crease

StepLanguageWordMeaning
1EnglishcreaseA line or mark made by folding or doubling any...
2Englishcreast—
3Middle Englishcrestridge, crest

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Middle English crest →Every word from English creast →Every word from English crease →