English

hypersection

From hyper- + section.

Proto-Indo-European *úp

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

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Proto-Indo-European *sek- ‘to cut’

…

Latin sectus ‘cut’

Latin sectiō ‘cutting’

Old French section

Middle English seccioun

Today it means

noun section through a hypersurface

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

Etymograph / hypersection