"Do you have a sore arm?"
Translation:Oes braich dost gyda chi?
Yes, ailments as in infections, illnesses etc which tend to affect your whole body - ar. But injuries, etc affecting, usually, a particular part of your body - gyda/gan.
- Mae braich/coes/clust dost gen/gyda i. a sore arm/leg/ear
- Mae annwyd/ffliw/'r frech goch arna i - a cold/flu/measles
A good on-line dictionary such as www.gweiadur.com is useful to look up meanings and examples.
Both these words have been mutated. The basic forms are poen and tost (but a good dictionary will let you look up the mutated forms anyway.).
- poen - a noun meaning 'pain' or 'ache', etc.
- tost - in this context, an adjective meaning 'sore' or 'painful', etc.