Where does “simultaneity” come from?

Simultaneity derives from French simultanéité, from Latin simultim meaning "at the same time," ultimately from Proto-Indo-European sem- meaning "together."

simultaneity (English): The quality or state of being simultaneous;...

Definitions

  1. The quality or state of being simultaneous;...

Ancestry of “simultaneity”, step by step

StepLanguageWordMeaning
1English-ityUsed to form a noun from an adjective;...
2Middle English-ite
3Old French-ité-ity
4Latin-itās
5Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
6Proto-Indo-European-teh₂Used to form nouns representing state of being
7Proto-Indo-European-tósCreates verbal adjectives from verb stems
Every word from Proto-Indo-European -tós