先せん祖ぞ伝でん承しょう

noun, noun which may take the genitive case particle 'no'

oral tradition; handed-down lore; legend

Refers to stories, customs, or knowledge passed down orally from ancestors. Often used in historical or folkloric contexts.

• この村むらには先せん祖ぞ伝でん承しょうの祭まつりが残のこっている。

  This village still has a festival handed down from ancestors.

• その話はなしは先せん祖ぞ伝でん承しょうとして語かたり継つがれてきた。

  That story has been passed down as an oral tradition.