The Malāmatiyya or Malamatis are a Sufi (Muslim mystic) group that was active in 8th-century Samanid Iran (Encyclopædia Britannica). Believing in the value of self-blame, that piety should be a private matter, and that being held in good esteem would lead to worldly attachment, they concealed their knowledge and made sure their faults would be known, reminding them of their imperfection (Encyclopædia Britannica).

The Arabic

Arabic language

Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

 word malāma (ملامه) means "to blame".