Etymograph

English

hyperflex

From hyper- + flex?

Formed from hyper- + flex

Proto-Indo-European *úp

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

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

English hyper-

Latin flecto ‘to bend’

Latin flexus

English flex

Today it means

noun A point of a curve where the tangent line has contact of order at least 4.

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

Etymograph / hyperflex