coom¹ /koom/

1. Soot
2. Coal dust
3. Dust or grime of various kinds

To begrime

• periodic table
• periodic tables
• periodic wind
• periodic winds
• perioding
• periodisation
• periodisations
• periodise
• periodised
• periodises
• periodising
• periodization
• periodizations
• periodize
• periodized
• periodizes
• periodizing
• period of grace
• periodontal
• periodontia
• periodontias
• periodontics
• periodontist
• periodontists
• periodontitis