I have no idea, but a while back I was asked to make some and in my research came across a wonderful pattern which referred to them as Knucks and it has stuck.
This design came into existence when my Hairy Darling came home from work one winter day and complained that he had cold bits as his gloves didn’t meet his jumper so a bit of noodling and measuring and the Long Finger Knucks came into being. Longer fingers so only the tip is exposed and extended cuffs that can tuck inside or out of your sleeves.
This pair is made with an Alpaca/Merino blend http://anjicatsrockingchair.yarnshopping.com/en/morbido-alpaca-black#inc579
But I have also made with 100% wool http://anjicatsrockingchair.yarnshopping.com/wool-deluxe-royal-blue