'surprisingly-guided' is a compound word formed from 'surprisingly' and 'guided'. 'Surprisingly' originates from the word 'surprise', which comes from Old French 'surprendre', meaning 'to overtake'. 'Guided' comes from the Old English 'gīedan', meaning 'to lead or direct'.

'Surprisingly' evolved from the Old French 'surprendre', while 'guided' evolved from the Old English 'gīedan'. The combination of these words into 'surprisingly-guided' is a modern English construct.

Initially, 'surprise' meant 'to overtake', and 'guide' meant 'to lead'. The combination now implies being led in an unexpected manner.