1) Ethnic and religious slur 
Majūs (Arabic and Persian: مجوس, pl. majūsī) was originally a term meaning Zoroastrians (and specifically, Zoroastrian priests). It was a technical term, meaning magus, and like its synonym gabr (of uncertain etymology) originally had no pejorative implications. In al-Andalus the pagan non-Christian population were called majus and could ei...