noun which may take the genitive case particle 'no'
inherited; ancestral; family heirloom
Describes something passed down through generations in a family, such as an object, tradition, or trait. Often used with nouns like 宝物 (treasure) or 土地 (land).
これは先祖伝来の刀です。
This is a sword handed down from my ancestors.
I want to protect the land that has been passed down through my family.