Gaelic is the common name for the Gaelic language family.
Within the languages themselves there is no common name, since they're separate languages.
Manx is: Gaelg (in Manx) / Gàidhlig Mhanainn (in Scots) / Gaeilge Mhanann (in Irish)
Scottish is: Gaelg Albinagh (in Manx) / Gàidhlig (in Scots) / Gaeilge na hAlban (in Irish)
Irish is: Yernish (in Manx) / Gàidhlig na h-Èireann (in Scots) / Gaeilge (in Irish)
'Jacob' is not a Scottish Gaelic word and has no meaning in that language.Iàcobis the Scottish Gaelicequivalent of Jacob.
UilliamLiam is more common currently.
In Irish, 'the common good' would be 'leas an phobail'.In Scottish Gaelic: ?
Janjuan is not Gaelic.
The most common form is Brianag. It's pronounced as breeanok.Also used for Brenda.
The name is not in Scottish Gaelic.
It has no meaning in Gaelic; it's not a Gaelic name.
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.)
You don't. It is not a Gaelic name.
The name for "Iceland" in Irish is "an Íoslainn"; The name in Scottish Gaelic: ?
The Scottish Gaelic name Beathag is anglicized as Beatrice.
'Robert' has no meaning in Gaelic: it is a English name.