abacus /abˈə-kəs/

1. A counting frame, consisting of horizontal rods along which movable beads can be slid
2. A level tablet on the capital of a column, supporting the entablature (architecture)

• defrayments
• defrays
• defreeze
• defreezes
• defreezing
• defriend
• defriended
• defriending
• defriends
• defrock
• defrost
• defrosted
• defroster
• defrosters
• defrosting
• defrosts
• defroze
• defrozen
• deft
• defter
• deftest
• deftly
• deftness
• deftnesses
• defunct