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"pertaining to origins," coined 1831 by Carlyle from Greek genetikos "genitive," from genesis "origin" (see genus). Biological sense first recorded in Darwin, 1859. Related: Genetically. Genetical is attested from 1650s.
genetic ge·net·ic (jə-nět'ĭk) or ge·net·i·cal (-ĭ-kəl)
Of or relating to genetics or genes.
Affecting or affected by genes, as a disorder or deficiency.
Of, relating to, or influenced by the origin or development of something; ontogenic.