hamantasch
noun
ha·man·tasch ˈhä-mən-ˌtäsh 
ˈhȯ-,
-ˌtȯsh
plural hamantaschen ˈhä-mən-ˌtä-shən
ˈhȯ-,
-ˌtȯ-
: a 3-cornered pastry with a filling (as of poppy seeds or prunes) traditionally eaten during the Jewish holiday Purim
Word History
Etymology
Yiddish homentash, from Homen Haman + tash pocket, bag
First Known Use
1927, in the meaning defined above