In Zoroastrianism Yazatás are adorable god powers. Yazatá comes from the root yaz “to honor as holy, adore, worship.”
The Avestan root yaz “to adore, fuse, unite” is the same as Graeco-Aryan root *yag’, Vedic yaj-, Old Persian yad- Greek házesthai “to stand in awe” and hágios “to honor as holy,” (Courtesy of Didier Calin.)
Yazatá therefore means “ god beings that inspire adoration.” We read in the poetic gathas, “wise is mazdá ahûrá as to those (god beings) who have been and are// I shall adore, honor them as holy under their own names, and go to them with love.” (See Yasna 51.22, 2nd and 3rd rhymed verse lines.)
In the Achaemenid calendar the 7th month, September-October was called bāga-yāδi literally “the month of adoration of the god powers/beings.”
Also the name of the 9th month, November-December, was called āçi-yāδya literally “the month of adoration, worship, holiness of the fire.” (Benveniste, Narten).
In Zoroastrianism, all thinking powers are gods in becoming, and Yazatás are god beings/powers that are Inspiring Adoration and emulation.
I shall conclude by stating that the name of the city of Yazd in the barren high desert of Central Iran comes from the same Avestan root. The islamic designation of Yazd as daar ol ebaadeh “outpost of worship” is a mere translation of the Avestan root of the name as the holy, adorable or worshipful City.
ardeshir
Authentic Gatha Zoroastrianism 
A comment from an insightful follower of our blog It is quite interesting how important names and roots are in Zoroastrianism. In many languages the roots state what language it was derived from and a basic meaning. However the fact that the roots and words carry so much weight in Zoroastrianism I believe shows how it is important we care for what we say and how we say it. The goodness must be all encompassing.