Wenda f
English: apparently an altered form of WENDY (SEE Wendy) (cf. e.g. Jenna from Jenny), since it does not appear in modern use until the vogue for that name. In the early Middle Ages, however, a name of identical form was in occasional use on the Continent as a short form of various female names (such as Wendelburg and Wendelgard) containing as their first element the ethnic name of the Wends (cf. WENDEL (SEE Wendel)). It may well have been partly influenced by WANDA (SEE Wanda).
First names dictionary. 2012.