grum /grum/

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

grumˈly adverb

grumˈness noun

• ballium
• balliums
• ball lightning
• ball mill
• ball mills
• ballocks
• ballocksed
• ballockses
• ballocksing
• ball of fire
• ballon
• ballon d'essai
• ballonet
• ballonets
• ballons
• balloon
• balloon angioplasties
• balloon angioplasty
• balloon-back
• balloon barrage
• balloon barrages
• balloon catheter
• balloon catheters
• ballooned
• ballooning