'Grown' in the Bible

Then Yahweh said to Abraham, "What [is] this [that] Sarah laughed, saying, 'Is it indeed true [that] I will bear a child, now [that] I have grown old?'

So she removed the clothes of her widowhood and covered [herself] with the veil and disguised herself. And she sat at the entrance to Eynayim, which [is] on the way to Timnah, for she saw that Shelah was grown but she had not been given to him as a wife.