[grun.tle] vt grun.tled ; grun.tling [back-formation fr. disgruntle] (1926): to put in a good humor "were gruntled with a good meal and good conversation --W. P. Webb"
GRUNTLE
Meaning of GRUNTLE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012