English

homomolecule

From homo- + molecule.

Proto-Indo-European *sem- ‘one, whole’

Proto-Indo-European *somHós ‘same, alike’

Proto-Hellenic *homós

Ancient Greek ὁμός ‘same’

English homo-

Latin mōlēs ‘a mass’

New Latin mōlēcula

French molécule

Today it means

noun A molecule composed of one type of atom.

Language periods are conventional ranges, not dates for this word.

Etymograph / homomolecule