bimillenary /bī-milˈi-nə-ri/

1. A period of 2000 years
2. A 2000th anniversary

1. Happening every 2000 years
2. Relating to a 2000th anniversary

• groanful
• groaning
• groaning board
• groaning boards
• groaningly
• groanings
• groans
• groat
• groats
• groatsworth
• groatsworths
• Grobian
• Grobianism
• grocer
• limousine
• limousines
• limp
• limped
• limper
• limpest
• limpet
• limpet mine
• limpet mines
• limpets
• limpid