Thine in example sentence
"Old thou mayst be," replied the knight; "more shame to their folly who have suffered thee to grow grey in usury and knavery--Feeble thou mayst be, for when had a Jew either heart or hand--But rich it is well known thou art.""I swear to you, noble knight," said the Jew "by all which I believe, and by all which we believe in common---""Perjure not thyself," said the Norman, interrupting him, "and let not thine obstinacy seal thy doom, until thou hast seen and well considered the fate that awaits thee.