mortalize
/ˈmɔːt(ə)lʌɪz/ /ˈmɔːtəlʌɪz/(also mortalise)
verb
1 [no object] To become mortal. Now rare.
2 [with object] To make mortal.
Origin
Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From mortal + -ize.