Despite having one year left to run on his current deal, Root’s playing possibilities were limited in 2018, and with the signings of Joe Clarke, Ben Duckett and Ben Slater, that was unlikely to change next summer.
Therefore, the decision was taken to give the left-hander an early release from his contract and allow him to join the Welsh county.
“We’re sad to see Billy go but understand that he wants more regular playing opportunities, something which has been hard to come by over the past year,” said Newell.
“He has the ability to play in all three formats, as he has shown during his time with us and I am sure he will relish his new challenge with Glamorgan.”
The left-hander made over 1,100 runs in his time at the Club, including centuries in both First Class and List A cricket.
His 133 alongside Chris Read in the final game of the 2017 season against Sussex, helped secure promotion from Division Two of the Specsavers County Championship and saw the Sheffield-born batsman sign his first professional deal.
Root is thankful for the opportunity he had to start his career with Nottinghamshire and is looking forward to his new challenge.
“I’ve had a brilliant few years with Nottinghamshire and made some great memories here - and I’d like to thank them for giving me my first opportunity in professional cricket,” said Root.
“I feel the time is right to embark on a new challenge and I’m excited to see what the future holds at Glamorgan.”
© Cricket World 2018