kava vs kavakava

kava and kavakava both are nouns.

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

As nouns, kava and kavakava are synonyms defined as:

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

kava (noun)	kavakava (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