Verb

1. To grow or increase in bulk or stature; to grow vigorously or luxuriantly, to flourish.

   • 1819: “It seems to me, reverend father,” said the knight, “that the small morsels which you eat, together with this holy, but somewhat thin beverage, have thriven with you marvellously.” — Walter Scott, Ivanhoe

2. To increase in wealth or success; to prosper, be profitable.

   Since expanding in June, the business has really thrived.