What is "to avise one's self"

Avise \A*vise"\, v. t. [F. aviser. See Advise, v. t.]

1. To look at; to view; to think of. [Obs.]
   --Chaucer.

2. To advise; to counsel. [Obs.]
   --Shak.

   To avise one's self, to consider with one's self, to reflect, to deliberate. [Obs.]
   --Chaucer.

   Now therefore, if thou wilt enriched be, Avise thee well, and change thy willful mood.
   --Spenser.