English
hypercontractivity
From hyper- + contractivity.
Formed from hyper- + contractivity
Proto-Indo-European *úp
Proto-Indo-European *upér ‘over, above’
Proto-Hellenic *hupér
Ancient Greek ὑπέρ ‘over’
English hyper-
Today it means
noun Excessive contractivity of the higher frequencies in a Fourier spectrum.
Language periods are conventional ranges, not dates for this word.
Etymograph / hypercontractivity