OK so I'm struggling a little to stay consistent in my AAR with all the Greek names for peoples and areas.

So can anyone help me here and correct me if I'm wrong.

This demonstrates what I have grasped from other AARs and stuff on here. Obviously I'm writing in English but I want to avoid saying things like 'Celtic' and 'Getian'

Thrace = Thraikia
Thracians = Thraikes
Thracian (n.) = ?
Thracian (adj.) = Thraikioi

Scythia = Skythia
Scythians = Skythai/Skythes?
Scythian (n.) = ?
Scythian (adj.) = Skythioi

Seleucid Empire = Arche Seleukeia
Seleucids = Seleukeioi
Seleucid (n.) = Seleukid?
Seleucid (adj.) = Seleukeioi

I have no idea how right or wrong I am but I just want to get some kind of consistency in my AAR. I realise that the Getai didn't speak Greek but in EB they use Greek to represent the lost Dacian language. In fact my empire is so Hellenised now that the state language may even be Greek.