No, it’s not a misspelling. As a capon is to a rooster, or gelding to a stallion, a wether refers to a buck goat that isn’t anymore. How to get that job done is not without controversy. Karen Kopf writes about neutering goats using elastrator banding.
Source: Backyard Goats, June 14, 2021. Link.
One of the greatest risks of banding goats is tetanus since the band creates an anaerobic environment. Care should be taken to protect the kid by vaccination with CD&T toxoid to create an immunity.”