expression, godan verb (-ru)
pray for the repose of someone's soul
A set phrase used in condolences, funerals, or memorial contexts. Often said as ご冥福をお祈りします.
故人のご冥福を心よりお祈りいたします。
I sincerely pray for the repose of the deceased's soul.
彼は友人の冥福を祈って、静かに手を合わせた。
He quietly put his hands together, praying for his friend's soul.