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

1. On one occasion
   - once, in one case

See also: past

• blackguard
• blackguardly
• blackhead
• blackheart
• blackheart cherry
• blacking
• blackish
• blackish-brown
• blackish-gray
• blackish-grey
• blackish-red
• blackjack
• blackjack oak
• blacklead
• blackleg
• blacklist
• blackly
• blackmail
• blackmailer
• blackmouth bass
• blackness
• blackout
• blackpoll
• Blackpool
• Blacksburg