'sporadically' originates from Greek, specifically the word 'sporadikos,' where 'spora' meant 'scattering.' 'Permitted' originates from Latin, specifically the word 'permittere,' where 'per-' meant 'through' and 'mittere' meant 'to send.'

'sporadically' changed from the Greek word 'sporadikos' and eventually became the modern English word 'sporadic.' 'Permitted' transformed from the Latin word 'permittere' and eventually became the modern English word 'permit.'

Initially, 'sporadically' meant 'scattered' and 'permitted' meant 'to allow through,' but over time they evolved into their current meanings of 'irregularly' and 'authorized,' respectively.