The Collaborative International Dictionary of English v.0.48:
blintz \blintz\, blintze \blintze\n.; pl. blintzes. [Yiddish blintze, fr. Byelorussian blinets, dimin. of Russ. blin. See also blin and blini.] (Jewish Cookery) a thin wheat pancake folded around a filling (such as cheese or fruit) and sauteed, fried, or baked. [WordNet 1.5 +PJC]WordNet (r) 3.0 (2006):
blintze n 1: (Judaism) thin pancake folded around a filling and fried or baked [syn: blintz, blintze]