English

hypereutectic

From hyper- + eutectic.

Proto-Indo-European *úp

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

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Ancient Greek εὔτηκτος ‘easily melted’

Today it means

adj Having a composition that lies to the right of the eutectic point in a phase diagram

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

Etymograph / hypereutectic