English edit

Etymology edit

hereditary +‎ -ly

Adverb edit

hereditarily (not comparable)

  1. In a hereditary manner.
    • 1931, H. P. Lovecraft, chapter 2, in The Whisperer in Darkness:
      After all, there might be some queer and perhaps hereditarily misshapen outcasts in those shunned hills, even though no such race of star-born monsters as folklore claimed.
  2. With regard to inheritance.