Where does “underilluminating” come from?

underilluminating (English) comes from English illuminating, from English illuminate, from Latin illuminatus, from Latin illūminō, from Latin lūminō, from Latin lūmen, from English -escence, from Latin -escens — Creates transitive imperfective verbs from roots.

underilluminating (English): That provides insufficient illumination

Definitions

  1. That provides insufficient illumination

Ancestry of “underilluminating”, step by step

underilluminating traces back through two separate lines of ancestry.

via English illuminating

StepLanguageWordMeaning
1EnglishilluminatingProviding illumination or light; Providing...
2EnglishilluminateTo shine light on something; To decorate...
3Latinilluminatusilluminated, brightened, having been illuminated;...
4Latinillūminōto illuminate, light up, brighten
5Latinlūminōto illuminate
6Latinlūmenlight, source of light
7English-escencea specified process or state
8Latin-escens
9Latin-escoForms verbs from adjectives meaning "become "
10Latin-eoForms stative verbs from adjectives; dative...
11Proto-Italic-ēōForms stative verbs, indicating a state of being;...
12Proto-Italic-ējō
13Proto-Indo-European-éh₁yetiThematicization of the athematic stative verbal...
14Proto-Indo-European-yetiCreates transitive imperfective verbs from 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 -yeti
underilluminating — Etymology, Origin & Word History | Etymology Explorer