hypocoristic
131Jack — m English: originally a pet form of JOHN (SEE John), but now well established as a given name in its own right. It is derived from Middle English Jankin, later altered to Jackin, from Jan (a contracted form of Jehan John) + the hypocoristic… …
132Jenkin — m English and Welsh: transferred use of the surname, which is derived from the medieval given name Jankin. This was a pet form of JAN (2) (SEE Jan), with the hypocoristic suffix kin (cf. JACK (SEE Jack)). The modern given name is comparatively… …
