:The state of the mind when it is powerfully acted upon and influenced by something external to itself. 

:The nature of the human mind can not be sufficiently understood, without considering the affections and passions or those modifications or actions of the mind consequent upon the apprehension of certain objects or events in which the mind generally conceives good or evil.

[F., fr. L. passio, fr. pati, passus, to suffer.]

Suffer:  [to bear] 

Webster's International Dictionary 1896