apologia vs apology

apologia and apology both are nouns.

Word	Noun	Adjective	Verb	Adverb
apologia	Yes	No	No	No
apology	Yes	No	No	No

As nouns, apologia and apology are synonyms defined as:

apologia and apology: a formal written defense of something you believe in strongly

apologia (noun)	apology (noun)
a formal written defense of something you believe in strongly	a poor example
	an expression of regret at having caused trouble for someone
	a formal written defense of something you believe in strongly