sell on

verb2

1. •
   To convince (a person) of something; used with on.

   • I was opposed to his ideas, but he sold me on them.
   • I have indeed been sold on renewable energy!
2. •
   To resell (goods or services).

   • Rather than sell the company's products on commission they, like distributors, buy stock from head office and sell it on for profit. — 1994