'sporadically' originates from Greek, specifically the word 'sporadikos,' where 'spora' meant 'scattered.' 'Positioned' comes from Latin, specifically the word 'positio,' where 'ponere' meant 'to place.'

'sporadically' changed from the Greek word 'sporadikos' and eventually became the modern English word 'sporadic.' 'Positioned' evolved from the Latin 'positio' through Old French 'position' to the modern English 'positioned.'

Initially, 'sporadic' meant 'scattered or dispersed,' and 'positioned' meant 'placed.' Over time, 'sporadically-positioned' evolved to mean 'placed at irregular intervals.'