Where does “Radhost” come from?

Radhost (Old Czech) comes from Old Czech host, from Proto-Slavic gȍstь, from Proto-Balto-Slavic gastis, from Proto-Indo-European gʰóstis, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

Ancestry of “Radhost”, step by step

Radhost traces back through two separate lines of ancestry.

via Old Czech host

StepLanguageWordMeaning
1Old Czechhostguest
2Proto-Slavicgȍstьguest
3Proto-Balto-Slavicgastisguest
4Proto-Indo-Europeangʰóstisstranger, host
5Proto-Indo-European-tisDerives abstract/action nouns from verb roots

via Old Czech rád

StepLanguageWordMeaning
1Old Czechrádglad
2Proto-Slavicradъglad; dear; willing
3Proto-Slavic-iťьDenominal, forming masculine attributables from...
Every word from Proto-Indo-European -tis →Every word from Proto-Indo-European gʰóstis →Every word from Proto-Balto-Slavic gastis →