'allomorphite' originates from Greek, specifically the word 'allomorphos,' where 'allo-' meant 'other' and 'morphē' meant 'form.'

'allomorphos' transformed into the French word 'allomorphite,' and eventually became the modern English word 'allomorphite.'

Initially, it meant 'other form,' but over time it evolved into its current meaning of 'a mineral form of lead sulfate.'