English
hydroborate
From hydro- + borate.
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 anions containing hydrogen bound to boron, especially the simplest one BH₄⁻; any salt or complex containing such an anion
Language periods are conventional ranges, not dates for this word.
Etymograph / hydroborate