English crape alters French crêpe. The route reaches Middle French crespe, formed from an adjective for curly, and Latin crispus.
The two Middle French uses share a spelling and are compressed into one card. This puzzle concerns the textile sense.
Sources
- Merriam-Webster: crape
The fabric is identified with crepe and its French and Latin forms are supplied.
- Merriam-Webster · crepe
Meanings of the older forms on the word path.
- Online Etymology Dictionary · crepe
Meanings of the older forms on the word path.