Féach! Look!
It doesn't look like an Irish Gaelic word.
You need to specify Irish Gaelic or Scottish Gaelic: they are two separate languages.
In Irish, gleanntán; in Scottish Gaelic: ?
In Irish it would look like "Donnchadh Seán".
It doesn't look like an Irish word to me. Perhaps the word is caróg (a crow)?
UilliamLiam is more common currently.
Never heard of it; it doesn't look like Gaelic with two 'p's.
Unless you mean 'veain' which is a borrowing of the English 'van' it doesn't look like an Irish word.
The Irish alphabet, also known as the Gaelic alphabet, consists of 18 letters.
Ith = eat (as a command to one person) leat = with-you. It doesn't look like good grammar in Irish.
The word for kitten in Scottish Gaelic is piseag. In addition, there are about 57,000 native Gaelic speakers found in Scotland.