Niall is the Irish Gaelic form
It would be Niall Réamonn
Niall Mac Colaim / Niall Mac Colmáin
Yes it is anglicized from the Gaelic O'Donnghaille meaning son of donnghaille from donngaille o'neill a decendant on niall of the nine hostages of ulster
The word for "name" is ainm in Irish (Gaelic);In (Scots) Gaelic it's also ainm.('Surname' is sloinne in Irish; sloinneadh in Scottish Gaelic.)
The name Neil has no meaning in Hebrew. Only Hebrew names have meaning in Hebrew.Neil comes from the Gaelic name Niall, which is of disputed origin, possibly meaning "champion" or "cloud". This was the name of a semi-legendary 4th-century Irish king, Niall of the Nine Hostages.
It is an English name and most likely has no Irish Gaelic form.
No Irish equivalent.
Niall means passionate in Irish.
His name is Niall
'Melanie' is used in Ireland even with the surname in Gaelic. There is no Irish Gaelic version of the name.
The Scottish Gaelic form of the surname is MacIllFhionndaig.As a first name it would be Liondsaidh.(Some Irish families that adopted the name 'Lindsay' were MacClintock, Lynchy, and O'Lynn.)
You don't. It is not a Gaelic name.