What does "unsight" mean?

Unsight: Doing or done without sight; not seeing or examining. [Colloq.] Unsight unseen, a colloquial phrase, denoting unseeing unseen, or unseen repeated; as, to buy a thing unsight unseen, that is, without seeing it. For to subscribe, unsight, unseen, To a new church discipline. Hudibras. There was a great confluence of chapmen, that resorted from every part, with a design to purchase, which they were to do "unsight unseen." Spectator.