Definition of Avestan
:an ancient Iranian language in which the sacred books of Zoroastrianism were written — see Indo-European Languages Table
—
What's Trending Now
More Trending Words
Explore Merriam-Webster
First Known Use of avestan
1856
Learn More about avestan
Seen and Heard
What made you want to look up Avestan? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!