English
submunition
From sub- + munition.
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Proto-Indo-European *mey- ‘to strengthen’
…
Old Latin moene
Latin moenia ‘city walls, defensive walls, or walls in general’
Latin mūnīre ‘fortify, defend (with a wall)’
Latin mūnitiō ‘a defence, fortification’
English munition
Today it means
noun Any part of a weapon (typically a bomb or missile) that separates from a parent munition before or during employment.
Language periods are conventional ranges, not dates for this word.
Etymograph / submunition