'sulphurless' originates from the word 'sulfur,' which comes from Latin 'sulphur,' meaning 'brimstone.' The suffix '-less' is used to denote 'without.'

'sulphur' transformed from the Latin word 'sulphur' and eventually became the modern English word 'sulfur.' The suffix '-less' was added to form 'sulphurless.'

Initially, 'sulphur' referred to the element sulfur, and 'sulphurless' has consistently meant 'without sulfur.'