Sharfadin (or Şerfedîn) is the name for the religion of the ethno-religious group of the Yazidi people. The Arabic name Sharfadin (Šaraf ad-dīn), that is, Sharfadin, means literally the honour of religion. (arab. شرف Sharaf = Honour and arab.  دين Din = Religion)
The Yazidi Sheikhs of Armenia usually answer the question of their ethnic and religious affiliation in this way:

• Milatē ma - Ēzīd, dīnē ma - Šarfadīn (Our nation - the Yazidis, our religion - Sharfadin).

One version of the Yazidi Symbol of Faith reads as follows:

• Ātqātā min Silt'ān Ēzīd, Dīnē min Šarfadīn (My faith is Sultan Ezid. My religion is Sharfadin.)

Or:

• Šarfadīna - dīnē mina. (Sharfadin is my religion.)