Where does “pluplural” come from?

pluplural (English) comes from English plural, from Middle English plurelle, from Old French plurel, from Latin plūrālis, from Latin plūs, from Old Latin plous, from Proto-Indo-European ploh₁is-.

pluplural (English): A word that is its own plural; an autological plural form

Definitions

  1. A word that is its own plural; an autological plural form

Ancestry of “pluplural”, step by step

pluplural traces back through two separate lines of ancestry.

via English plural

StepLanguageWordMeaning
1EnglishpluralConsisting of or containing more than one of...
2Middle Englishplurelleplural
3Old Frenchplurelplural
4Latinplūrālisplural
5Latinplūsmore; more of
6Old Latinplous—
7Proto-Indo-Europeanploh₁is-—

via Proto-Indo-European plu-

StepLanguageWordMeaning
1Proto-Indo-Europeanplu-—
2Proto-Indo-Europeanplew-to fly, flow, run
Every word from Proto-Indo-European ploh₁is- →Every word from Old Latin plous →Every word from Latin plūs →