Your name is fine for the product. If you went with just "Bitesize Irish" or "Bitesize Gaelic", you'd likely be much more confusing to a big chunk of your target market.
"Bitesize Irish Gaelic" isn't great as a company name because it's so narrow, but "Bitesize" is a good name if you want to expand to other languages at some point. I don't know what you'd have to pay for the domain, but it's probably available since it's just parked right now.
"Bitesize Irish Gaelic" isn't great as a company name because it's so narrow, but "Bitesize" is a good name if you want to expand to other languages at some point. I don't know what you'd have to pay for the domain, but it's probably available since it's just parked right now.