[celoyd]

Proprietor of that site here.

Nope, “witch” can apply to men just as well as women and always has. In fact, you’ll find several dictionaries citing Malory’s “Le Morte d’Arthur” (1485) as an early usage, where Merlin is referred to by some as a “wytche”.

It’s also the standard academic term across gender. If memory serves, it’s used this way in the groundbreaking study “Witchcraft, Oracles and Magic Among the Azande” by E. E. Pritchard, which set the standard for the anthropology of witchcraft.

It’s also used for a man in the television show “Futurama”, for a more contemporary colloquial reference.