'nonconventional' originates from the prefix 'non-' meaning 'not' and the word 'conventional,' which comes from Latin 'conventionem,' meaning 'a coming together, agreement.'

'conventionem' transformed into the Old French word 'convention,' and eventually became the modern English word 'conventional,' with 'non-' added to form 'nonconventional.'

Initially, 'conventional' meant 'an agreement or coming together,' but over time, 'nonconventional' evolved to mean 'not conforming to traditional norms.'