Where does “lumenless” come from?

lumenless (English) comes from English lumen, from Latin lūmen, from English -escence, from Latin -escens, from Latin -esco, from Latin -eo, from Proto-Italic -ēō, from Proto-Italic -ējō — Creates transitive imperfective verbs from roots.

lumenless (English): Lacking a lumen

Definitions

  1. Lacking a lumen

Ancestry of “lumenless”, step by step

lumenless traces back through two separate lines of ancestry.

via English lumen

StepLanguageWordMeaning
1EnglishlumenIn the International System of Units, the derived...
2Latinlūmenlight, source of light
3English-escencea specified process or state
4Latin-escens
5Latin-escoForms verbs from adjectives meaning "become "
6Latin-eoForms stative verbs from adjectives; dative...
7Proto-Italic-ēōForms stative verbs, indicating a state of being;...
8Proto-Italic-ējō
9Proto-Indo-European-éh₁yetiThematicization of the athematic stative verbal...
10Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European -yeti