Emily Dickinson Lexicon

GRUM'BLE, v.i. [D. grommelen, grommen; Sax. grymetan; Dan. gremmer; Fr. grommeler; W. grymial, to grumble; Russ. grom, a loud noise, thunder; gremlyu, to make a loud noise, to thunder; Arm. grommellat; Ir. cruim, thunder; probably from the root of rumble; Heb. Ch. Syr. רעם, to roar, murmur, thunder; Sax. reomian, hremman, to scream. Class Rm, No. 11, 13.]

1. To murmur with discontent; to utter a low voice by way of complaint. L'Avare, not using half his store, / Still grumbles that he has no more. Prior.
2. To growl; to snarl; as, a lion grumbling over his prey.
3. To rumble; to roar; to make a harsh and heavy sound; as, grumbling thunder; a grumbling storm. [In this sense, rumble is generally used.]