ChaBaD
The name Chabad comes from the array of 10 Sephroth, (2. Chochmah, 3. Binah, -Daat) refers to the three intellectual sephiros (Divine Emanations)
The name ChaBaD refers to three intellectual Sefirot Divine Emanations which comes from 10 Sefirot which form the Tree of Life.
Cha - (02. Chochmah (Wisdom; çëîä) Ba - (03. Binah (Understanding; áéðä) D - Da'at (Knowledge; ãòú) (non numbered Sefiroth)
The 10 names of the Sefirot are:
01. Kether (Crown; ëúø) 02. Chochmah (Wisdom; çëîä) 03. Binah (Understanding; áéðä) 04. Chesed (Mercy; çñã) 05. Gevurah (Severity; âáåøä) 06. Tiphareth (Redeemer; úéôàøú) 07. Netzach (Victory; ðöç) 08. Hod (Majesty; äåã) 09. Yesod (Foundation; éñåã) 10. Malkhuth (Kingdom; îìëåú)
Occasionally another is enumerated: Da'at (Knowledge; ãòú)
