Main Entry: grun·tle

Pronunciation: \ˈgrən-t^əl\

Function: transitive verb

Inflected Form(s): grun·tled; grun·tling \ˈgrənt-liŋ, ˈgrən-t^əl-iŋ\

Etymology: back-formation from disgruntle

Date: 1926

: to put in a good humor <were gruntled with a good meal and good conversation — W. P. Webb>