verb/ɡʁɔm.le/
to grumble, mutter
Synonyms: murmurer
Related: grommellement
From Middle French grommeler, from Old French grumeler (“to murmur, grumble”), from Middle Dutch grommelen (“to murmur, mutter, grunt”), frequentative of Middle Dutch grommen, related to Low German grummeln (“to grumble”), German grummeln (“to grumble”).