Where does “atom-” come from?

atom- (Norwegian Nynorsk) comes from Norwegian Nynorsk atom, from Ancient Greek ἄτομος, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

atom- (Norwegian Nynorsk): atomic, nuclear

Definitions

  1. atomic, nuclear

Ancestry of “atom-”, step by step

StepLanguageWordMeaning
1Norwegian Nynorskatoman atom
2Ancient Greekἄτομοςuncut; indivisible, not capable of being...
3Ancient Greekἀ-The alpha privativum, used to make words that...
4Proto-Hellenichə-same; together
5Proto-Indo-Europeansm̥-one; with, together
6Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem- →Every word from Ancient Greek ἀ- →Every word from Ancient Greek ἄτομος →