遠おん諱き

noun

semicentennial memorial service

A Buddhist memorial service held on the 50th anniversary of a person's death. A specialized term used mainly in religious contexts.

• 来らい月げつ、祖そ父ふの遠おん諱きを営いとなむ予よ定ていです。

  We plan to hold a memorial service for my grandfather's 50th anniversary next month.