English

halide

From hal(ogen) + -ide.

Formed from halogen + ide

Proto-Indo-European *sḗh₂l ‘salt’

Proto-Hellenic *hā́ls ‘salt’

Ancient Greek ἅλς ‘salt" or "sea’

Swedish id

Latin idus ‘the ides’

French ide ‘ide (fish)’

English ide

Today it means

noun Any salt of any halogen acid (such as hydrochloric acid, hydrofluoric acid, or hydroiodic acid).

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