v. t. [ imp. & p. p. Illegitimated p. pr. & vb. n. Illegitimating. ] To render illegitimate; to declare or prove to be born out of wedlock; to bastardize; to illegitimatize. [ 1913 Webster ]
The marriage should only be dissolved for the future, without illegitimating the issue. Bp. Burnet. [ 1913 Webster ]
a. 1. Not according to law; not regular or authorized; unlawful; improper. [ 1913 Webster ]
2. Unlawfully begotten; born out of wedlock; bastard; as, an illegitimate child. [ 1913 Webster ]
3. Not legitimately deduced or inferred; illogical; as, an illegitimate inference. [ 1913 Webster ]
4. Not authorized by good usage; not genuine; spurious; as, an illegitimate word. [ 1913 Webster ]
Illegitimate fertilization, or Illegitimate union (Bot.), the fertilization of pistils by stamens not of their own length, in heterogonously dimorphic and trimorphic flowers. Darwin. [ 1913 Webster ]