Where does “eutectoid” come from?

eutectoid (English) comes from English eutectic, from Ancient Greek εὔτηκτος, from Ancient Greek εὖ, from Ancient Greek ἐΰς, from Proto-Hellenic ehu-, from Proto-Indo-European h₁su-, from Proto-Indo-European h₁wes- — good; to be cheerful, happy; to eat, to feast.

eutectoid (English): Describing the phase-change reaction of an alloy...

Definitions

  1. Describing the phase-change reaction of an alloy...

Ancestry of “eutectoid”, step by step

eutectoid traces back through two separate lines of ancestry.

via English eutectic

StepLanguageWordMeaning
1EnglisheutecticDescribing the chemical composition or...
2Ancient Greekεὔτηκτοςeasily melted or dissolved
3Ancient Greekεὖwell
4Ancient Greekἐΰςgood, brave, noble
5Proto-Hellenicehu-good
6Proto-Indo-Europeanh₁su-good
7Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast

via French eutectoïde

StepLanguageWordMeaning
1Frencheutectoïdeeutectoid

Words derived from “eutectoid

Every word from Proto-Indo-European h₁wes-Every word from Proto-Indo-European h₁su-Every word from Proto-Hellenic ehu-