cauk or cawk /kök/

1. Chalk (dialect)
2. Barytes in platy crystals

• erst
• erstwhile
• erubescence
• erubescences
• erubescencies
• erubescency
• erubescent
• erubescite
• erubescites
• Eruca
• erucic acid
• eruciform
• eruct
• eructate
• eructated
• eructates
• eructating
• eructation
• eructations
• eructed
• eructing
• eructs
• erudite
• eruditely
• erudites