家系

kakei

noun★Intermediate

formal

Family lineage or pedigree, referring to the ancestral lineage of a family, often used in genealogical or historical contexts.

この家系は数百年の歴史を持っている。

This family lineage has a history of several hundred years.

💡

Often used in discussions of family history, genealogy, or hereditary status.

Collocations

家系図family tree家系の歴史family lineage history

家系図を調べるphrase

to research one's family tree

家系 is often used in historical or genealogical research to describe the continuity of a family's lineage.

Composed of '家' (house, family) and '系' (lineage, series), emphasizing the continuity of a family's bloodline.

Used in formal or historical contexts to discuss ancestry, often in written or academic settings.

家

house, family

root

系

lineage, series

root

✎ Noted on June 4, 2026JA → EN