bygone ( bygones plural )
1 adj Bygone means happening or existing a very long time ago.
The book recalls other memories of a bygone age., ...bygone generations.
2 If two people let bygones be bygones, they decide to forget about unpleasant things that have happened between them in the past.
let bygones be bygones phrase
Translation English Cobuild Collins Dictionary
Add your entry in the Collaborative Dictionary.