grum /grum/

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

grumˈly adverb

grumˈness noun

• prosyllogism
• prosyllogisms
• prot-
• Prot.
• refractional
• refraction correction
• refractions
• refractive
• refractive index
• refractive indices
• refractively
• refractivities
• refractivity
• refractometer
• refractometers
• refractometric
• refractometry
• refractor
• refractories
• refractorily
• refractoriness
• refractorinesses
• refractors
• refractory
• refractory period