From Greek 'genea' (family) + '-logia' (study) — literally 'the study of begetting,' from PIE *ǵenh₁-.
A line of descent traced from an ancestor; the study and tracing of lines of descent and family histories.
From Greek "genealogía" (the making of a pedigree, tracing of descent), a compound of "geneá" (race, generation, family) and "-logía" (study, account, discourse), from "lógos" (word, reason, account). The first element "geneá" derives from PIE *ǵenh₁- (to beget, give birth), one of the most fundamental roots in the language family, yielding Latin "genus" (birth, race, kind), "gēns" (clan), "gignere" (to beget), Greek "génos" (race, kind), Sanskrit "jánas" (race, people), and English "kin" (via Proto-Germanic *kunją). The second element
The Bible's 'begat' passages (Genesis 5, Matthew 1) are genealogies in the purest etymological sense — records of begetting. The Greek word 'genealogia' first appears in Greek literature in the context of cataloguing the generations of gods and heroes. Hesiod's 'Theogony' is essentially a genealogy of the gods, tracing who begot whom from Chaos