ETYMOLOGY
from inter- + gern variant of grin (vb. to show the teeth in rage, pain, disappointment, etc.; to snarl as a dog; to complain persistently)
EXAMPLE
“…The eager Dogs are cheer’d with claps and cryes,
The angry Beast to his best chamber flies,
And (angled there) sits grimly inter-gerning;
And all the Earth rings with the Terryers yearning…”
From: Du Bartas his deuine weekes and workes translated:
and dedicated to the Kings most excellent Maiestie
Translated by Iosuah Syluester (Joshua Sylvester)
Guillaume de Saluste Du Bartas, 1st edition 1605
Lexicophilia 