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heredity (n.)

1530s, "inheritance, succession," from French hérédité, from Old French eredite "inheritance, legacy" (12c.), from Latin hereditatem (nominative hereditas) "heirship, inheritance, an inheritance, condition of being an heir," from heres (genitive heredis) "heir, heiress" (from PIE root *ghe- "to be empty, left behind," source also of Greek khēra "widow"). Legal sense of "inheritable quality or character" first recorded 1784; the modern biological sense "transmission of qualities from parents to offspring" seems to be found first in 1863, introduced by Herbert Spencer.

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Definitions of heredity from WordNet

heredity (n.)
the biological process whereby genetic factors are transmitted from one generation to the next;
heredity (n.)
the total of inherited attributes;
Synonyms: genetic endowment
From wordnet.princeton.edu