Nouns

(n)jonah, jinxa person believed to bring bad luck to those around them
(n)hex, jinx, curse, whammyan evil spell“a witch put a curse on his whole family”, “he put the whammy on me”

Verbs

(v)hex, bewitch, glamour, witch, enchant, jinxcast a spell over someone or something; put a hex on someone or something
(v)jinxforedoom to failure“This project is jinxed!”