Where does “unrugged” come from?

unrugged (English) comes from English ED, from Japanese エンディング, from English ending, from Middle English ending, from Middle English endyng, from Old English endung, from Old English endian, from Proto-Germanic andijōną — on, onto.

unrugged (English): Not rugged; Not rugged, without a rug; simple...

Definitions

  1. Not rugged; Not rugged, without a rug; simple...

Ancestry of “unrugged”, step by step

unrugged traces back through 3 separate lines of ancestry.

via English ED

StepLanguageWordMeaning
1EnglishEDInitialism of erectile dysfunction; Initialism of...
2Japaneseエンディングending, especially of a broadcast or performance
3EnglishendingA termination or conclusion; The last part of...
4Middle EnglishendingAlternative form of endyng
5Middle EnglishendyngAn ending, termination, or conclusion;...
6Old Englishendungending
7Old Englishendianto end, make an end of; to finish, complete; to...
8Proto-Germanicandijōnąto end, bring to an end, finish
9Proto-Germanicandijazend
10Proto-Indo-Europeanh₂entíosfront; forehead
11Proto-Indo-Europeanh₂ent-face; forehead; front
12Proto-Indo-Europeanh₂en-on, onto

via English rugged

StepLanguageWordMeaning
1EnglishruggedBroken into sharp or irregular points; uneven;...
2EnglishrugA partial covering for a floor; A piece of...
3Middle Englishruggeridge
4Old Norserǫggshagginess; tuft; tuft, shagginess; tuft;...
5Proto-Germanicrūhazrough
6Proto-Indo-Europeanh₃rewk-to dig; to till
7Proto-Indo-Europeanh₃er-to move, to stir; to rise, to spring; to quarrel,...

via English unrug

StepLanguageWordMeaning
1EnglishunrugTo remove a rug from
2EnglishunOne
Every word from Proto-Indo-European h₂en-Every word from Proto-Indo-European h₂ent-Every word from Proto-Indo-European h₂entíos