Where does “doublewide” come from?

doublewide (English) comes from English wide, from Old English wīd, from Proto-Germanic wīdaz, from Proto-Indo-European h₁weydʰh₁os, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

Ancestry of “doublewide”, step by step

doublewide traces back through two separate lines of ancestry.

via English wide

StepLanguageWordMeaning
1EnglishwideHaving a large physical extent from side to side;...
2Old Englishwīdwide, vast, broad, long; distant, far
3Proto-Germanicwīdazwide; broad
4Proto-Indo-Europeanh₁weydʰh₁osset apart, asunder, in two
5Proto-Indo-Europeandwi-two; apart, asunder
6Proto-Indo-Europeandwóh₁two

via English doublé

StepLanguageWordMeaning
1EnglishdoubléA compound attack that deceives the opponent's...
2Frenchdoublédouble, brace, pair; double; doublé
3Middle Frenchdouble
4Old Frenchdobledouble
5Latindūplusdouble (twice as much, or as big)
6Proto-Italic*duplosdouble
Every word from Proto-Indo-European dwóh₁
doublewide — Etymology, Origin & Word History | Etymology Explorer