Alternative Spellings

mussar, musser, muser


  • reproof; system of ethics; discipline

Example Sentences

  • "Don't give me mussar!"
  • "The Mussar Institute advances the study and practice of Mussar, a Jewish path of character development and spiritual growth leading to awareness, wisdom, and transformation." (

Languages of Origin

Textual Hebrew


מוסר musar (Proverbs/Mishlei 1:2 'moral conduct, discipline')

Who Uses This

Religious: Jews who are engaged in religious observance and have some Jewish education
Orthodox: Jews who identify as Orthodox and observe halacha (Jewish law)


North America


Yiddish and English: A Century of Yiddish in America, by Sol Steinmetz (Tuscaloosa, 1986).


Musar is a Jewish ethical movement that crystallized among non-Hasidic Orthodox Jews in Lithuania in the 19th century, led by Israel Salanter. In the 21st century, there has been renewed interest in musar, not only among Orthodox Jews, but also in Renewal, Conservative, and Reform circles, as seen in and propelled by books by Alan Morinis and Ira Stone.

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