English
hypernatremia
From hyper- + natremia or hyper- + natr- + -emia.
Proto-Indo-European *úp
Proto-Indo-European *upér ‘over, above’
Proto-Hellenic *hupér
Ancient Greek ὑπέρ ‘over’
English hyper-
Today it means
noun An abnormally high concentration of sodium in blood plasma.
Language periods are conventional ranges, not dates for this word.
Etymograph / hypernatremia