Just an observation as well, so we have:
Saoirse is derived from Saor there is also the word Daoirse which derives from Daor, of course I can’t imagine Daoirse been turned into a fistname as Saoirse has 😆
Here’s a page with some derivatives of Daor from Dineen, it’s use as an intensifier is interesting. I especially like
Daor-Smaċt (Daor-Smacht) = Extreme Tyranny
Daor-Boċt (Daor-Bocht) = very poor (extreme poverty)
