Te·beth n.  The tenth month of the Jewish ecclesiastical year, answering to a part of December with a part of January.
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  Tebeth
     (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, good, goodness (the tenth month of the Hebrews)