Käppi

Etymology
Possibly as a byname/nickname from, a variant of.

Etymology
Originally an diminutive of.

Noun

 * 1) kepi
 * 2) cap (head covering)

Usage notes
As a diminutive form, Käppi is originally and predominantly neuter (das Käppi). In some regions, however, including parts of western Germany, the word is commonly treated as feminine (die Käppi).