noun
first generation; founder of a family, school, or sect
Rare term used for the earliest ancestor of a family or the originator of a school of thought or religious sect. More common alternatives include 始祖 (しそ) or 開祖 (かいそ).
この寺の初祖は、鎌倉時代の僧だと伝えられている。
The founder of this temple is said to have been a monk of the Kamakura period.
彼はその流派の初祖として尊敬されている。
He is respected as the founder of that school.