Some Thracian tribonyms

As a rule, I'm trying to avoid asking silly questions like 'I got a
wild guess and am lazy to check up myself, so please...' here, but I
can't help it this time.
Consider the following Thracian tribonyms (in Greek rendering):
1. _tHu:noi'_,_bi:tHu:noi'_,_bi:sa'ltai_;
2. _koilale:tai_, _dentHe:le:toi_ (I'm not aware of the accent).
It's temting to extract something like *bi:-, *tHu:n-, *le:t-, *salt(-
a)-, *koil-, *dentH(-e:)-, but I have nearly no idea as to these
morphemes' semantics. Any ideas?

Sergei