'worrisome' originates from the Old English word 'wyrgan,' where 'wyrgan' meant 'to strangle or choke.'

'wyrgan' transformed into the Middle English word 'worien,' and eventually became the modern English word 'worry,' from which 'worrisome' is derived.

Initially, it meant 'to strangle or choke,' but over time it evolved into its current meaning of 'causing worry or anxiety.'