'sporadically' originates from Medieval Latin, specifically the word 'sporadicus,' where 'sporad-' meant 'scattered.' 'Checked' comes from Middle English 'chekken,' meaning 'to stop or restrain.'

'sporadicus' transformed into the English word 'sporadic,' and eventually became 'sporadically' in modern English. 'Chekken' evolved into 'check' in modern English.

Initially, 'sporadicus' meant 'scattered,' but over time it evolved into its current meaning of 'occurring at irregular intervals.' 'Chekken' initially meant 'to stop,' but now means 'to verify or inspect.'