grum /grum/

1. Morose
2. Surly
3. (of a sound) deep in the throat (obsolete)

grumˈly adverb

grumˈness noun

• cosmoramic
• cosmos
• cosmoses
• cosmosphere
• cosmospheres
• cosmotheism
• cosmotheisms
• cosmothetic
• cosmothetical
• cosmotron
• COSPAS-SARSAT
• cosphered
• cosplay
• cosponsor
• cosponsored
• cosponsoring
• cosponsors
• coss
• Cossack
• Cossack boots
• Cossack hat
• Cossack post
• Cossacks
• cosses
• cosset