'Grew' in the Bible

but the poor man had nothing except one small ewe lamb that he had bought. He raised it, and it grew up, living with him and his children. It shared his meager food and drank from his cup; it slept in his arms, and it was like a daughter to him.

While he was offering the sacrifices, Absalom sent for David’s adviser Ahithophel the Gilonite, from his city of Giloh. So the conspiracy grew strong, and the people supporting Absalom continued to increase.