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

• sure-enough
• sure-fire
• surefooted
• surefootedly
• surefootedness
• surefootednesses
• surely
• sureness
• surenesses
• surer
• sures
• surest
• sure thing
• sure things
• swatchbooks
• swatches
• swath
• swathe
• swathed
• swathes
• swathier
• swathiest
• swathing
• swathing-clothes
• swathling-clouts