Polka is a noun.
A Polka is a dance
to say polka in japanese is poruka which is polka
the answer you are looking for is Polka
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
It is said in the related article that polka is of Bohemian origin (Bohemia being the western part of the Czech Republic) - but that it was met with success in Europe, notably in France afterwards.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.