The Collaborative International Dictionary of English v.0.48:
Fin \Fin\ (f[i^]n), v. t. [imp. & p. p. Finned; p. pr. & vb. n. Finning.] [Cf. Fin of a fish.] To carve or cut up, as a chub. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Finned \Finned\, a. Having a fin, or fins, or anything resembling a fin. --Mortimer. [1913 Webster]