Samyaza (שמחזי; שמיחזה; Σεμιαζά; ساميارس, ), also Shemhazai, Azza, Uzza, or Ouza, is a fallen angel of apocryphal Abrahamic traditions and Manichaeism who ranked in the heavenly hierarchy as the leader of the Watchers.
The name "Shemyaza(z)" means "the (or my) name has seen," "he sees the name," or "I have seen." It is also spelled "Samyaza", "Shemhazai", "Samiaza(z)", "Semiaza", "Shamazya", "Shemyazaz", "Shemihazah", "Shemyaza", "Sêmîazâz", "Semjâzâ", "Samjâzâ", "Šemihaza", and "Semyaza".
The scholars lean towards the Semitic etymology of this appellation which contains the letters shin (ש) and mem (מ), thus suggesting the derivation from either “name” (Heb. שם, shem) or “heavens” (Heb. שמים, shamaym). Moshe Idel proposed that Samyaza is the one who “gazes at heavens” or “gazes from heavens”. This interpretation goes well with the motif of the heavenly Watchers, i.e., the angels supervising humans on earth.
In colloquial Aramaic of the Christians of the Middle East, it has become the common name for a television.
In the Book of Enoch, one of the apocryphal writings, Samyaza is portrayed as the leader of a band of angels called "sons of God" or "Watchers" (grigori in Greek). These Watchers became consumed with lust for mortal women and entered into machinations against heaven in order to consummate their desires.
When the rebel angels first meet upon Mount Hermon to organize their secret society of 200 members, Samyaza, as their recognized chieftain, initially doubts the initiates' resolve to forswear heaven. This they had planned to achieve through dark alliances and clandestine oaths sworn under penalty of death, thereby binding themselves to that treachery whereby they would use their heaven-acquired knowledge to create a counterfeit religion on earth to satisfy their lusts and carnal desires:
And Semjâzâ, who was their leader, said unto them: "I fear ye will not indeed agree to do this deed, and I alone shall have to pay the penalty of a great sin.