Where does “Ruegg” come from?

Ruegg (English) comes from Norwegian Bokmål rugg, from Middle English rygge, from Old English hryċġ, from Old English tūn, from Proto-West Germanic tūn, from Proto-Germanic tūną, from Gaulish dunum, from Proto-Celtic dūnom — smoke; mist, haze.

Ancestry of “Ruegg”, step by step

StepLanguageWordMeaning
1Norwegian Bokmålruggimperative of rugge
2Middle Englishrygge
3Old Englishhryċġridge; back, spine, ridge, elevated surface
4Old Englishtūnenclosure, yard; place; dwelling
5Proto-West Germanictūnfence
6Proto-Germanictūnąfence; enclosure
7Gaulishdunumfort; hill, hillfort
8Proto-Celticdūnomstronghold, rampart
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European dʰewh₂-Every word from Proto-Celtic dūnomEvery word from Gaulish dunum