plea vs entreaty

plea and entreaty both are nouns.

Word	Noun	Adjective	Verb	Adverb
plea	Yes	No	No	No
entreaty	Yes	No	No	No

As nouns, entreaty is a hypernym of plea; that is, entreaty is a word with a broader meaning than plea:

Other hypernyms of plea include appeal, prayer.

plea (noun)	entreaty (noun)
an answer indicating why a suit should be dismissed	earnest or urgent request
a humble request for help from someone in authority
(law) a defendant's answer by a factual matter (as distinguished from a demurrer)