Grumble

[gruhm-buh l] /ˈgrʌm bəl/

verb (used without object), grumbled, grumbling.
1.
to murmur or mutter in discontent; complain sullenly.
2.
to utter low, indistinct sounds; growl.
3.
to rumble:
The thunder grumbled in the west.
verb (used with object), grumbled, grumbling.
4.
to express or utter with murmuring or complaining.
noun
5.
an expression of discontent; complaint; unhappy murmur; growl.
6.
grumbles, a grumbling, discontented mood.
7.
a rumble.
/ˈɡrʌmbəl/
verb
1.
to utter (complaints) in a nagging or discontented way
2.
(intransitive) to make low dull rumbling sounds
noun
3.
a complaint; grouse
4.
a low rumbling sound
v.

1580s, from Middle French grommeler “mutter between the teeth” or directly from Middle Dutch grommelen “murmur, mutter, grunt,” from grommen “to rumble, growl.” Imitative, or perhaps akin to grim. Related: Grumbled; grumbling.
n.

1620s, from grumble (v.).

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