'ammoniated' originates from 'ammonia', specifically the word 'ammoniacus', where 'ammon' referred to the ancient Egyptian god Amun, associated with the region where ammonium chloride was first found.

'ammoniacus' transformed into the French word 'ammoniaque', and eventually became the modern English word 'ammonia', from which 'ammoniated' is derived.

Initially, it meant 'related to ammonia', and this meaning has largely remained the same in modern usage.