enterprise
Pronunciation: /ˈɛntəprʌɪz/
noun

Origin:
late Middle English: from Old French, 'something undertaken', feminine past participle (used as a noun) of entreprendre, based on Latin prendere, prehendere 'to take'

Enterprise in modern use is always spelled -ise, not -ize.

Spelling help
Remember that enterprise ends with -ise.