'nonconformant' originates from the prefix 'non-' meaning 'not' and the word 'conformant' which comes from 'conform', meaning 'to comply with rules or standards'.

'conformant' changed from the Latin word 'conformare', meaning 'to form or shape', and eventually became the modern English word 'conform'.

Initially, it meant 'not forming or shaping according to a standard', but over time it evolved into its current meaning of 'not conforming to established customs or standards'.