To incentivize someone is to give them a reason to do something, especially by offering a reward: extra pay, points, a gift, a better grade. It is a modern business-and-policy word, built from incentive (a pull, a reward) + -ize (to make / to cause). American spelling keeps -ize; British spelling often uses incentivise. Though actually, many careful writers dislike it — they would rather say reward, encourage, or give people a reason to — but companies, governments, and apps use it constantly: incentivize users to come back every day. It does not mean force; it means make it worth their while. The thing you offer is the incentive.