1. Belonging to some prior time
   - erstwhile, former, old, one-time, quondam, sometime

1. On one occasion
   - once, in one case

See also: past

• centred
• centred text
• centrefielder
• centrefold
• centreing
• centreline
• centrepiece
• centrex
• centric
• centrical
• centricity
• centrifugal
• centrifugal force
• centrifugal pump
• centrifugate
• centrifugation
• centrifuge
• centring
• centriole
• centripetal
• centripetal acceleration
• centripetal force
• Centriscidae
• centrism
• centrist