divagation vs deviation

divagation and deviation both are nouns.

Word	Noun	Adjective	Verb	Adverb
divagation	Yes	No	No	No
deviation	Yes	No	No	No

As nouns, divagation and deviation are synonyms defined as:

divagation and deviation: a turning aside (of your course or attention or concern)

Other synonyms of divagation include deflection, deflexion, digression, diversion.

divagation (noun)	deviation (noun)
a turning aside (of your course or attention or concern)	deviate behavior
a message that departs from the main subject	a turning aside (of your course or attention or concern)
	the error of a compass due to local magnetic disturbances
	the difference between an observed value and the expected value of a variable or function
	a variation that deviates from the standard or norm