'considerably' originates from the Latin word 'considerabilis', where 'considerare' meant 'to look at closely or examine'.

'considerabilis' transformed into the Old French word 'considerable', and eventually became the modern English word 'considerable', with 'considerably' as its adverbial form.

Initially, it meant 'worthy of consideration', but over time it evolved into its current meaning of 'to a great extent or degree'.