Where does “ptycho-” come from?

ptycho- (English) comes from Ancient Greek πτυχή, from Ancient Greek πτῠ́σσω — to fold.

Ancestry of “ptycho-”, step by step

StepLanguageWordMeaning
1Ancient Greekπτυχήfold
2Ancient Greekπτῠ́σσωto fold
Every word from Ancient Greek πτῠ́σσω →Every word from Ancient Greek πτυχή →