English

hyperradius

From hyper- + radius.

Proto-Indo-European *úp

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

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Latin radius ‘ray’

Today it means

noun The radius of a hypersphere

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

Etymograph / hyperradius