'typicality' originates from the adjective 'typical' combined with the noun-forming suffix '-ity'. 'Typical' ultimately comes from Greek 'typikos' (from 'typos') meaning 'a blow, mark, model', passed into Latin and then into French before English.

'typical' came into English via Old French and Latin from Greek 'typikos' (from 'typos'). The abstract noun-forming suffix '-ity' comes from Latin '-itas'. The modern English noun 'typicality' was formed by combining 'typical' + '-ity' to express the state or degree of being typical.

Initially related to the idea of 'pertaining to a type or model,' it evolved into a noun expressing the state or degree of being typical or representative; in modern usage it often denotes a measurable degree of representativeness.