The difference between Deviate and Stray

Deviate as a noun (sociology):

A person with deviant behaviour; a deviant, degenerate or pervert.

Deviate as a noun (statistics):

A value equal to the difference between a measured variable factor and a fixed or algorithmic reference value.

Deviate as a verb (intransitive):

To go off course from; to change course; to change plans.

Deviate as a verb (intransitive, figurative):

To fall outside of, or part from, some norm; to stray.

Deviate as a verb (transitive):

To cause to diverge.

Stray as a noun:

Any domestic animal that has no enclosure, or its proper place and company, and wanders at large, or is lost; an estray.

Stray as a noun (figuratively):

One who is lost, either literally or metaphorically.

Stray as a noun:

The act of wandering or going astray.

Stray as a noun (historical):

An area of common land or place administered for the use of general domestic animals, i.e. "the stray"

Stray as a verb (intransitive):

To wander, as from a direct course; to deviate, or go out of the way.

Stray as a verb (intransitive):

To wander from one's limits; to rove or roam at large; to go astray.

Stray as a verb (intransitive, figurative):

To wander from the path of duty or rectitude; to err.

Stray as a verb (transitive):

To cause to stray.

Stray as an adjective:

Having gone astray; strayed; wandering

Stray as an adjective:

In the wrong place; misplaced.