Cockle \Coc"kle\, v. t. [imp. & p. p. Cockled; p. pr. & vb. n. Cockling.]

[Of uncertian origin.]

To cause to contract into wrinkles or ridges, as some kinds of cloth after a wetting.

Cockling sea, waves dashing against each other with a short and quick motion. --Ham. Nav. Encyc.

Source: Webster's Revised Unabridged Dictionary (1913)