Where does “unnested” come from?

unnested (English) comes from English un — One.

unnested (English): simple past tense and past participle of unnest;...

Definitions

  1. simple past tense and past participle of unnest;...

Ancestry of “unnested”, step by step

unnested traces back through two separate lines of ancestry.

via English un

StepLanguageWordMeaning
1EnglishunOne

via English nested

StepLanguageWordMeaning
1Englishnestedsimple past tense and past participle of nest;...
Every word from English un
unnested — Etymology, Origin & Word History | Etymology Explorer