illegitimatize

[ il-i-jit-uh-muh-tahyz ]
/ ˌɪl ɪˈdʒɪt ə məˌtaɪz /

verb (used with object), il·le·git·i·ma·tized, il·le·git·i·ma·tiz·ing.

to make illegitimate: The decree illegitimatized his heirs.
Also especially British, il·le·git·i·ma·tise.

Origin of illegitimatize

First recorded in 1805–15; illegitimate + -ize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019