English
subgeneration
From sub- + generation.
Formed from sub- + generation
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Proto-Indo-European *ǵenh₁- ‘to produce, beget’
…
Latin generō ‘to beget’
Latin generātiō ‘a begetting; a generation’
Old French generacion
Middle English generacioun ‘procreation’
English generation
Today it means
noun A generation that belongs to another generation.
Language periods are conventional ranges, not dates for this word.
Etymograph / subgeneration