bort or boart /bört/

1. Diamond fragments or dust
2. A coarse diamond or crystalline form of carbon, used industrially for cutting or as an abrasive

• unsepulchred
• unserious
• unserviceable
• unset
• unsets
• unsetting
• unsettle
• unsettled
• unsettledly
• unsettledness
• unsettlednesses
• unsettlement
• unsettlements
• unsettles
• unsettling
• unsettlings
• unsevered
• unsew
• unsewed
• unsewing
• unsewn
• unsewn binding
• unsews
• unsex
• unsexed