What is "kerned"

Kerned \Kerned\ (k[~e]rnd), a. (Print.) Having part of the face projecting beyond the body or shank; -- said of type. ``In Roman, f and j are the only kerned letters.''
--MacKellar.

Kern \Kern\, v. t. [imp. & p. p. Kerned; p. pr. & vb. n. Kerning. ] (Type Founding) To form with a kern. See 2d Kern.

Etymology 1

1. Having part of the face projecting beyond the body or shank; -- said of type. Etymology 2

   v

2. (en-past of: kern)