Dictionary.net

cast a spell over someone or something; put a hex on someone or something

an evil spell; "a witch put a curse on his whole family"; "he put the whammy on me"

of or pertaining to a number system having 16 as its base

cast a spell over someone or something; put a hex on someone or something

an evil spell; "a witch put a curse on his whole family"; "he put the whammy on me"

of or pertaining to a number system having 16 as its base

A common prefix, meaning six.