historian/hiʹstawri·ən/ noun

• disciplinarian
• disciplinary
• discipline
• discipular
• disc jockey
• disclaim
• disclaimer
• disclose
• disclosing agent
• disclosing tablet
• disclosure
• disco
• discobolus
• discography
• discoid
• discolour
• discombobulate
• discomfit
• discomfort
• discommode
• discompose
• disconcert
• disconfirm
• disconnect
• disconnected