Not sure what part of speech 'на!' is when used in the meaning of 'take!'
3 Answers
When you use на
like take
, it is not an interjection "междометие"
, and of course it is not a verb "глагол"
, it's a particle "частица"
(colloquial).
Prooflink: http://www.gramota.ru/slovari/dic/?word=%ED%E0&all=x
It is interjection (Междометие) http://ru.wiktionary.org/wiki/%D0%BD%D0%B0#.D0.BD.D0.B0_II