(Esther 2:16), a word probably of Persian origin, denoting the cold time of the year; used by the later Jews as denoting the tenth month of the year. Assyrian tebituv, "rain."
tebeth, a month corresponding to parts of December and January.
Ever since that day it has been kept as a fast—the fast of tebeth.
The Jewish year began in the early spring, and tebeth was the tenth month.