an expression of congratulations and best wishes, used chiefly by Jews: A chorus of mazel tovs greeted the newlyweds as they circulated from table to table.
interjection
2.
Congratulations!; Best wishes!: “Mazel tov,” Grandpa said as he thrust a five-dollar bill into my pocket. “I'm so proud of you!”
Also, mazal tov.
Origin: 1860–65; < Yiddishmazltov < Hebrewmazzāl tōbh literally, good luck
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a scrap or morsel of food left at a meal.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.