'surprisingly-steered' originates from the combination of 'surprise' and 'steer', where 'surprise' meant 'unexpected' and 'steer' meant 'to guide or control'.

'surprise' changed from the Old French word 'surprendre' and 'steer' from the Old English 'steoran', eventually forming the modern English compound 'surprisingly-steered'.

Initially, 'surprise' meant 'to take unawares', and 'steer' meant 'to guide', evolving into the current meaning of 'controlled in an unexpected manner'.