Definition of optionalize in English:

optionalize

verb

(also optionalise)
  • To make optional.

Pronunciation

optionalize

/ˈɒpʃ(ə)nəlɪz/ /ˈɒpʃ(ə)n(ə)lʌɪz/ /ˈɒpʃən(ə)lʌɪz/

Origin

1920s; earliest use found in Proceedings Classical Association. From optional + -ize.