be slow to fall into friendship,but when thou art in,continue firm and constant meaning -thou art in?? shuaib akhtar 16-09-2016 1 Answers 2 0 TAGS slowfallintofriendshipbutwhenthouartincontinuefirmandconstant meaning-thouDictionary Comment: Submit See all questions in Others thou = you art = are old English usage Virendra Bajpai 17/09/2016 1 0 Report Answer