Where does “eumelanosome” come from?

eumelanosome (English) comes from English melanosome, from English some, from Middle English som, from Old English sum, from Proto-West Germanic *sum, from Proto-Germanic sumaz, from Proto-Indo-European sem- — together, one.

eumelanosome (English): A brownish-black melanosome

Definitions

  1. A brownish-black melanosome

Ancestry of “eumelanosome”, step by step

eumelanosome traces back through two separate lines of ancestry.

via English melanosome

StepLanguageWordMeaning
1EnglishmelanosomeAny organelle that contains melanin
2EnglishsomeA certain number, at least two; An indefinite...
3Middle Englishsomsome
4Old Englishsumsome
5Proto-West Germanic*sumsome
6Proto-Germanicsumazsome (one), a certain (one)
7Proto-Indo-Europeansem-together, one

via English eu

StepLanguageWordMeaning
1Englisheu
2Ancient Greekεὖwell
3Ancient Greekἐΰςgood, brave, noble
4Proto-Hellenicehu-good
5Proto-Indo-Europeanh₁su-good
6Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast
Every word from Proto-Indo-European sem-Every word from Proto-Germanic sumazEvery word from Proto-West Germanic *sum