English
atomic
From atom + -ic.
A compound of atom + -ic
Proto-Indo-European *temh₁- ‘to cut’
…
Ancient Greek ἄτομος ‘indivisible’
Latin atomus ‘smallest particle’
Middle French athome
Middle English attome
English atom
Today it means
adj Of or relating to atoms; composed of atoms; monatomic.
Language periods are conventional ranges, not dates for this word.
Etymograph / atomic