prefix
the late; the deceased
Prefix attached to names or titles to indicate that the person has passed away. Formal and respectful.
故・山田太郎氏の功績を称える。
We honor the achievements of the late Mr. Taro Yamada.
故・田中首相の政策は今も影響を与えている。
The policies of the late Prime Minister Tanaka still have an influence today.