gĕnĕālŏgus

i, m.
I. a genealogist: qui (dii) genealogis antiquis sic nominantur, Cic. N. D. 3, 17, 44. So of Moses, as the author of Genesis: illud ait genealogus idem, Prud. Apoth. 315.
Lewis & Short
A Latin Dictionary, 1879
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