Etymology
Advertisement

illegitimacy (n.)

1670s; see illegitimate + -acy.

Advertisement
Advertisement
Definitions of illegitimacy

illegitimacy (n.)
the status of being born to parents who were not married;
Synonyms: bastardy / bar sinister
illegitimacy (n.)
unlawfulness by virtue of not being authorized by or in accordance with law;
From wordnet.princeton.edu