kavakava vs kava

kavakava and kava both are nouns.

Word	Noun	Adjective	Verb	Adverb
kavakava	Yes	No	No	No
kava	Yes	No	No	No

As nouns, kavakava and kava are synonyms defined as:

kavakava and kava: an alcoholic drink made from the aromatic roots of the kava shrub

kavakava (noun)	kava (noun)
an alcoholic drink made from the aromatic roots of the kava shrub	an alcoholic drink made from the aromatic roots of the kava shrub