English
hexacid
From hex- + acid.
Formed from hex- + acid
Proto-Indo-European *h₂eḱ- ‘sharp’
…
Proto-Italic *akēō
Latin aceō ‘to be sour’
Latin acidus ‘sour’
French acide ‘acid’
English acid
Today it means
adj Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent.
Language periods are conventional ranges, not dates for this word.
Etymograph / hexacid