Ha·sid or Has·sid also Chas·sid (äsĭd, ô-, hä-)
n. pl. Ha·si·dim or Has·si·dim also Chas·si·dim (ä-sēdĭm, ô-, hä-)
A member of a Jewish mystic movement founded in the 18th century in eastern Europe by Baal Shem Tov that reacted against Talmudic learning and maintained that God's presence was in all of one's surroundings and that one should serve God in one's every deed and word.
[From Hebrew ḥāsîd, pious, from ḥāsad, to be kind; see ḥsd in the Appendix of Semitic roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.