Where does “underscrupulous” come from?

underscrupulous (English) comes from English scrupulous, from Middle French scrupuleux, from Latin scrūpulōsus, from Latin scrūpulus, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.

underscrupulous (English): Insufficiently scrupulous

Definitions

  1. Insufficiently scrupulous

Ancestry of “underscrupulous”, step by step

underscrupulous traces back through two separate lines of ancestry.

via English scrupulous

StepLanguageWordMeaning
1EnglishscrupulousExactly and carefully conducted; Having scruples...
2Middle Frenchscrupuleux
3Latinscrūpulōsusfull of sharp stones
4Latinscrūpulusa small, sharp or pointed stone
5Latin-ulusUsed to form a diminutive of a noun, indicating...
6Proto-Italic-olos
7Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
8Proto-Indo-European-e-lós
9Proto-Indo-European-lósForms agent nouns from verbal roots

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European -lósEvery word from Latin -ulusEvery word from Latin scrūpulus