Glossary Select a family : All familiesALL - A31 B85 C35 D13 E7 G11 H76 K40 L21 M85 N10 O3 P32 R6 S75 T36 U2 Y19 Z6 Omer Hebrew term for a unit of dry measure, it was used to measure barley and is sometimes translated as "sheaf" (as in, "sheaf of barley"). Omer now refers to the period of 49 days from Passover to Shavuot. Today, instead of bringing an omer of barley to sacrifice, the days are counted ("counting the Omer"). It's also a period of semi-mourning, when traditional Jews will refrain from partying, dancing, listening to live music, or cutting their hair. Oneg Shabbat Hebrew for "Sabbath joy," the term for the light refreshments served after a Shabbat service. Oznei Haman Hebrew for "Haman's ears," these fried pieces of dough, shaped to look somewhat like an ear, and made with orange blossom water and orange peel, are drizzled with rich sugar syrup. They are a Sephardi treat for the holiday of Purim.