adulterize
/əˈdʌlt(ə)rʌɪz/(also adulterise)
verb
1 [with object] To corrupt, debase, adulterate. rare.
2 [no object] To commit adultery (with someone). Now rare ( archaic in later use).
Origin
Late 16th century. From adulter + -ize. Compare French adultériser to change, adulterate.