Thanks. I made a PR and went with "þurpą" -> "Wīhsą" -> "Burgz". "Haimaz" is also the root of the German "Heim" (which basically means home), that's why I decided against it in the end. "Burgz" is already used for the Germanic fortress, but that's not a problem, since that's the case for some other civs too already.
https://gitea.wildfiregames.com/0ad/0ad/pulls/8722
Maybe wīhsą could be written like that. There’s also þurpą (the root of thorp and German Dorf), and alhs can also mean settlement. I’m not sure what would be the size ordering for all these and haimaz, which sounds too much like home for me, but it apparently did mean village also.