bha_s.a_, 'language'

What are the cognates in IE languages? bha_s.a_ is generally
interpreted as: speech , language (esp. common or vernacular speech ,
as opp. to Vedic or in later times to Sanskrit): Nir. Pa_n.ini. Mn.
MBh.; name of Sarasvati_. Is this an instance of a Munda word in
Sanskrit?

Can it be linked to va_k (va_c), word in Sanskrit?