English
hereditarian
From hereditary + -an.
A compound of hereditary + -an
Proto-Indo-European *ǵʰeh₁- ‘to leave behind, abandon’
…
Latin hērēs ‘heir’
Latin hērēditās ‘inheritance’
Latin hērēditārius ‘hereditary, inherited’
Middle English hereditarie ‘hereditary, inherited’
English hereditary
Today it means
noun One who advocates hereditarianism.
Language periods are conventional ranges, not dates for this word.
Etymograph / hereditarian