Definition of mortalize in English:

mortalize

(also mortalise)

Pronunciation /ˈmɔːt(ə)lʌɪz/ /ˈmɔːtəlʌɪz/

verb

  • 1rare To become mortal.

  • 2To make mortal.

Origin

Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From mortal + -ize.