Where does “nilmanifold” come from?

nilmanifold (English) comes from English manifold, from Middle English manifold, from Old English maniġfeald, from Proto-Germanic managafalþaz, from Proto-Germanic -falþaz, from Proto-Indo-European -poltos, from Proto-Indo-European pel- — to cover, to wrap; skin, hide, cloth; to fold.

nilmanifold (English): A quotient space of a nilpotent Lie group modulo...

Definitions

  1. A quotient space of a nilpotent Lie group modulo...

Ancestry of “nilmanifold”, step by step

nilmanifold traces back through two separate lines of ancestry.

via English manifold

StepLanguageWordMeaning
1EnglishmanifoldVarious in kind or quality; diverse; Many in...
2Middle Englishmanifold
3Old Englishmaniġfealdmanifold, various, varied, complicated, numerous,...
4Proto-Germanicmanagafalþazvarious, diverse, manifold
5Proto-Germanic-falþaz-fold
6Proto-Indo-European-poltos-fold
7Proto-Indo-Europeanpel-to cover, to wrap; skin, hide, cloth; to fold

via English nil

StepLanguageWordMeaning
1EnglishnilNothing; zero; No, not any
2Latinnīl
3Sanskritनीलof a dark color
4Proto-Indo-EuropeanneyH-to lead
Every word from Proto-Indo-European pel-