'Damaged' in the Bible

Now Jonathan, Saul's son, had a son whose feet were damaged. He was five years old when news of the death of Saul and Jonathan came from Jezreel, and the woman who took care of him took him up and went in flight: and while she was getting him away as quickly as she was able, he had a fall and his feet were damaged. His name was Mephibosheth.

And the king said, Is there anyone of Saul's family still living, to whom I may be a friend in God's name? And Ziba said, There is a son of Jonathan, whose feet are damaged.