English

hypomagnesia

From hypo- + magnesia.

Proto-Indo-European *upó ‘under, below’

Ancient Greek ὑπό ‘under’

English hypo-

Ancient Greek μαγνησία ‘name of several ores and metallic amalgams’

Late Latin magnesia

Middle English magnesia

Today it means

noun magnesium deficiency

Language periods are conventional ranges, not dates for this word.

Etymograph / hypomagnesia