rimple
/ˈrɪmpl/Now chiefly US
verb
[no object] And with object. To form into small folds or undulations; to wrinkle; especially (of water) to ripple.
- Apparently rare in the 16th and 17th centuries..
Origin
Late Middle English; earliest use found in Promptorium Parvulorum. From rimple. Compare Middle Dutch rimpelen (Dutch rimpelen). Compare rimpled and rimpling.