Where does “chemoluminescently” come from?

chemoluminescently (English) comes from English luminescently, from English luminescent, from Latin lūmen, from English -escence, from Latin -escens, from Latin -esco, from Latin -eo, from Proto-Italic -ēō — Creates transitive imperfective verbs from roots.

Ancestry of “chemoluminescently”, step by step

chemoluminescently traces back through two separate lines of ancestry.

via English luminescently

StepLanguageWordMeaning
1EnglishluminescentlyIn a luminescent manner
2EnglishluminescentEmitting light by luminescence
3Latinlūmenlight, source of light
4English-escencea specified process or state
5Latin-escens
6Latin-escoForms verbs from adjectives meaning "become "
7Latin-eoForms stative verbs from adjectives; dative...
8Proto-Italic-ēōForms stative verbs, indicating a state of being;...
9Proto-Italic-ējō
10Proto-Indo-European-éh₁yetiThematicization of the athematic stative verbal...
11Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

via English chemo

StepLanguageWordMeaning
1EnglishchemoClipping of chemotherapy
Every word from Proto-Indo-European -yetiEvery word from Latin -eoEvery word from English -escence