The story
- Hebrew · borrowed fromתִּשְׁעָה בְּאָב“the ninth day of Av”
- English todayTisha B'Av
From Hebrew תִּשְׁעָה בְּאָב (Tish'a B'Áv, “the ninth day of Av”), from תִּשְׁעָה (tish'á, “nine”) + בְּ (b'-, “in”) + אָב ('Áv, “Av, fifth month of the Jewish Calendar”).
Etymology from Wiktionary, CC BY-SA 4.0.