Where does “actinosome” come from?

actinosome (English) comes 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.

actinosome (English): The entire body of a coelenterate

Definitions

  1. The entire body of a coelenterate

Ancestry of “actinosome”, step by step

StepLanguageWordMeaning
1EnglishsomeA certain number, at least two; An indefinite...
2Middle Englishsomsome
3Old Englishsumsome
4Proto-West Germanic*sumsome
5Proto-Germanicsumazsome (one), a certain (one)
6Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem- →Every word from Proto-Germanic sumaz →Every word from Proto-West Germanic *sum →