'untypical' originates from the prefix 'un-' meaning 'not' and the word 'typical', which comes from the Greek word 'typos' meaning 'impression' or 'model'.

'typical' evolved from the Greek word 'typos' through Latin 'typicus' and eventually became the modern English word 'typical'. The prefix 'un-' was added to form 'untypical'.

Initially, 'typical' meant 'pertaining to a type or model', and 'untypical' evolved to mean 'not fitting a type or model'.