expression, ichidan verb
renew old friendship; rekindle an old friendship
A set phrase used when old friends meet again and revive their relationship. Often used in formal or written contexts.
同窓会で旧交を温めることができて嬉しかった。
I was happy to be able to renew old friendships at the class reunion.
久しぶりに会った友人
I rekindled an old friendship with a friend I met after a long time.