"Do you want nine apples?"
Translation:Dych chi eisiau naw afal?
The word is eisiau ('need' or 'want'). It is pronounced in various different ways in different parts of Wales and these phonetic spellings are often used informally instead of eisiau. So you may see isio, isha, isia, eisia, eisha, and so on.
isio is a taught form on the DysguCymraeg 'north' courses.