on purpose

That wasn't an accident! You did it on purpose!

Blifil bowed and stammered, and looked like a fool; but Western, without giving him time to form a speech for the purpose, answered, “Well, well, I am to blame, if you will, I always am, certainly; but come, let the girl be fetched back again, or let Mr Blifil go to her.——He’s come up on purpose, and there is no time to be lost.”