'beseech' originates from Old English, specifically the word 'besēcan', where 'be-' meant 'about' and 'sēcan' meant 'to seek'.

'besēcan' transformed into the Middle English word 'besechen', and eventually became the modern English word 'beseech'.

Initially, it meant 'to seek or search for', but over time it evolved into its current meaning of 'to ask earnestly or beg'.