English
hydroprocessing
From hydro- + processing.
A compound of hydro- + processing
Proto-Indo-European *wed- ‘water’
Proto-Indo-European *wódr̥ ‘water’
Proto-Hellenic *údōr ‘water’
Ancient Greek ῡ̆̔́δωρ ‘water’
English hydro-
Today it means
noun Any of several chemical engineering processes including hydrogenation, hydrocracking and hydrotreating, especially as part of oil refining.
Language periods are conventional ranges, not dates for this word.
Etymograph / hydroprocessing