Where does “дꙋга” come from?

дꙋга (Old East Slavic) comes from Proto-Slavic dǫga, from Proto-Balto-Slavic dangāˀ — cover.

Ancestry of “дꙋга”, step by step

StepLanguageWordMeaning
1Proto-Slavicdǫgaarc, arch; rainbow
2Proto-Balto-Slavicdangāˀcover
Every word from Proto-Balto-Slavic dangāˀ →Every word from Proto-Slavic dǫga →