It is trowsus in north Wales, but trwser in south Wales.
If nanna means 'grandmother' it's mam-gu [mam-gee] in south Wales and nain ['nine'] in north Wales.
If 'nana' means 'grandmother', it is 'nain' in north Wales and 'mam-gu' in the south.
The proper adjective for Wales is Welsh.
Cymru
It is trowsus in north Wales, but trwser in south Wales.
In North Wales: taid; in South Wales: tad-cu.
In North Wales: taid; in South Wales: tad-cu.
taid in North Wales; tad-cu in South Wales.
Welsh is spoken in both Wales and Patagonia, in Argentina.
Mamgu (usually in South Wales) or Nain (in North Wales)
MamguIn south Wales mam-gu; in north Wales nain.
North Wales = nain South Wales = mam gu
The majority of Welsh speakers are in Gwynedd, North Wales (62.5%+ fluent), especially in the Caernarfon area where roughly 90% are Welsh-speaking.The divide is more obvious from East - West Wales, in the western counties are in the 40%+ area of Welsh speakers, the eastern counties are usually under 40% Welsh speakers.
The seat of the Welsh Assembly is Cardiff. The capital of the UK is London.
The word for grandmother in Welsh is "nain" pronounced as nine.
To keep the Welsh out!