keen vs Hibernia

keen and Hibernia both are nouns.

Word	Noun	Adjective	Verb	Adverb
keen	Yes	Yes	Yes	No
Hibernia	Yes	No	No	No

keen (noun)	Hibernia (noun)
a funeral lament sung with loud wailing	an island comprising the republic of Ireland and Northern Ireland

keen (adjective)	Hibernia (adjective)
excellent
intense or sharp
having or demonstrating ability to recognize or draw fine distinctions
having a sharp cutting edge or point
painful as if caused by a sharp instrument

keen (verb)	Hibernia (verb)
express grief verbally