'unusually-segmented' originates from the combination of 'unusual' and 'segment,' where 'unusual' means 'not common' and 'segment' means 'to divide into parts.'

'unusual' changed from the Middle English word 'unusual' and 'segment' from the Latin word 'segmentum,' eventually forming the modern English term 'unusually-segmented.'

Initially, 'unusual' meant 'not common,' and 'segment' meant 'to divide into parts.' The combined term 'unusually-segmented' retains this meaning, referring to something divided in an uncommon way.