Cig eidion
wyt ti'n gallu siarad cymraeg? [are you able to speak Welsh?] (familiar / singular) ydych chi'n gallu siarad cymraeg? (polite / plural) ydych chi'n siarad cymraeg? [do you speak Welsh?] (literal translation) them three are formal. this is informal(not posh): tin siarad cymraeg?
Thomas Gwynn Jones has written: 'Geiriadur Cymraeg-Saesneg a Saesneg-Cymraeg'
The Welsh people Cymry; the language is Cymraeg; the adj. is Cymreig.
Wales
Cymraeg
Cymraeg, also known as Welsh, is spoken in Wales. It is one of the official languages of the country alongside English.
(Wyt) ti'n siarad Cymraeg? (informal)Ydych chi'n siarad Cymraeg? (formal)
Cymreig adj. (Cwn Defaid Cymreig = Welsh sheepdogs)Cymraeg adj. (of the Welsh language, Cwrs Cymraeg)Cymraeg noun (Welsh language)Cymry noun (the Welsh people)Cymreigaidd/Cymroaidd adj. ('Welshy')
Welsh (Cymraeg)
Cenin Cymraeg
You can say "Do you speak Welsh?" in Welsh by asking "Ydych chi'n siarad Cymraeg?"
Yes, its called Welsh or Cymraeg