'surprisingly-formed' originates from the English word 'surprise,' which comes from the Old French 'surprendre,' meaning 'to overtake.' The suffix '-ly' is used to form adverbs, and 'formed' is derived from the Latin 'formare,' meaning 'to shape.'

'surprendre' transformed into the Middle English word 'surprisen,' and eventually became the modern English word 'surprise.' The word 'formed' has remained relatively unchanged from its Latin origins.

Initially, 'surprise' meant 'to overtake or capture,' but over time it evolved into its current meaning of 'unexpected.'