caution vs parenesis

caution and parenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
caution	Yes	No	Yes	No
parenesis	Yes	No	No	No

As nouns, parenesis is a hyponym of caution; that is, parenesis is a word with a more specific, narrower meaning than caution:

caution (noun)	parenesis (noun)
the trait of being cautious; being attentive to possible danger	(rhetoric) exhortation; admonition.
the trait of being circumspect and prudent
judiciousness in avoiding harm or danger
a warning against certain acts

caution (verb)	parenesis (verb)
warn strongly; put on guard