research for historical novel. Two questions

[Sigurdrifa]

I've come across the idea that his Phoenician name "Abdes" means "servant of Isis" but this could mean nothing. I've also read that at least sometimes temple slaves weren't actually slaves but serfs working on temple estates and as servants to priests and other officials.

'Abdes' may be just a name with no significance to be attached to its underlying meaning. Alternatively, it could simply mean that he was a worshipper of Isis, without implying that he had any direct connection with the temple as servant or in any other capacity.

He could have been from a family who worshipped Isis. In fact that's probably the most logical explanation for the name; I think it was his given name.