To go out of the way; to turn aside from a course or a method; to stray or go astray; to err; to digress; to diverge; to vary.

turn aside; turn away from

cause to turn away from a previous or expected course; "The river was deviated to prevent flooding"

having behavior differing from that which is normal or expected, especially in an undesirable or socially disapproved manner; as, deviate behavior.

a person having behavior differing from that which is normal or socially acceptable; -- used especially to characterize persons whose sexual behavior is considered morally unacceptable.

a person whose behavior deviates from what is acceptable especially in sexual behavior

A sex pervert of any kind

be at variance with; be out of line with

To cause to deviate.