challah

• challa, chalah, hallah, chaleh

From Hebrew חַלָּה‎ (loaf), influenced by Yiddish חלה‎ (khale).

• IPA^(key): /ˈχɑːlə/, /ˈχʌlə/

challah (countable and uncountable, plural challahs or challos or challot or challoth)

1. (countable) A traditional bread eaten by Ashkenazi Jews, usually braided for the Sabbath and round for Yom Tov.
   • 2006, The Mishnah, seder Zeraim, tractate Challah, Personal-Size edition, Mesorah Publications, page 54, commentary on 1:7:

     […] it is a time-honored custom that when women bake challah-loaves for Sabbath and Yom Tov use, they specifically prepare a dough large enough to be obligated in challah, so they can fulfill the mitzvah of separating challah […] .

2. (uncountable) The commandment to separate a portion of bread or bread dough for the cohanim (Numbers 15:17–21); in contemporary practice, the portion is burned until inedible.
3. (countable) The portion separated in fulfillment of the above.

• separating challah on Wikipedia.Wikipedia
• Cookbook:challah on Wikibooks.Wikibooks