English

hyperexpansion

From hyper- + expansion.

Proto-Indo-European *úp

Proto-Indo-European *upér ‘over, above’

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Proto-Indo-European *peth₂- ‘to spread out’

…

Latin pandō ‘spread’

Latin expandō ‘to spread something out’

Latin expānsiō

French expansion

Today it means

noun excessive expansion

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

Etymograph / hyperexpansion