PIMGENET

also PIMGENNET, PIMGINET, PIMGINIT, PIMGINNIT, 
PIMPGENET, PINGINNET

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origin unknown

Note: From ED-HOL:
PIMGENET (corruption of pomegranate) A small red pimple from its resemblance to a Pomegranate in colour, or in shape

From ED-FOR:

E-NED (Volume VII, 1909) notes evidence is wanting for Forby's conjecture, and that the alleged sense 'pomegranate' is not recorded in The English Dialect Dictionary
The following was in Volume IV (1898-1905) of the EDD:
(Jennet [also Gennet] is a kind of apple that ripens early.

1693 - Of Plants translated Bks. I and II, by J. O.;
see Example below (taken from an earlier edition, 1689)

From: The Second and Third Parts of the Works of Mr. Abraham Cowley
The Sixth Edition
The Third Part of the Works of Mr. Abraham Cowley
Printed 1689
Book I. Of Plants
Sow-Bread
P. 22