noun
Academic term for the study of family lineages and descent. Often used in historical or anthropological contexts.
See also: 系譜学
彼は大学で系図学を専攻している。
He is majoring in genealogy at university.
Compound of 系図 (family tree, lineage) and 学 (study, -ology). The exact historical derivation is uncertain, but the term follows the standard pattern for academic disciplines.