Definition of athleticize in English:

athleticize

(also athleticise)

verb

  • with object To make more athletic; to make fit, strong, agile, etc.

Origin

Late 19th century; earliest use found in Harper's Magazine. From athletic + -ize.

Pronunciation

athleticize

/aθˈlɛtɪsʌɪz//əθˈlɛtɪsʌɪz/