intransitive verb (~ed; ~ing) Etymology: probably imitative Date: 1621 grumble , to wander slowly and idly, to speak indistinctly or disconnectedly, ~er noun
MAUNDER
Meaning of MAUNDER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012