English
proeutectoid
From pro- + eutectoid.
Proto-Indo-European *pér ‘through’
Proto-Indo-European *pró ‘forwards, before’
Proto-Italic *prō ‘in front of, before’
Latin prō ‘in favor of, on behalf of’
English pro-
Today it means
adj That forms (on cooling) above the eutectoid temperature
Language periods are conventional ranges, not dates for this word.
Etymograph / proeutectoid