ILLEGIT'IMATE, adjective [See Legitimate.] 1. Unlawfully begotten; born out of wedlock; spurious; as an illegitimate son or daughter. 2. Unlawful; contrary to law. 3. Not genuine; not of genuine origin; as an illegitimate inference. 4. Not authorized by good usage; as an illegitimate word. ILLEGIT'IMATE, verb transitive To render illegitimate; to prove to be born out of wedlock; to bastardize.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI