Answer: avestan

AnswerCrossword Clue
AVESTAN

Pertaining to sacred Zoroastrian books.

AVESTAN

Language related to Old Persian.

AVESTAN

Iranian language.

AVESTAN
Of the sacred books of Persia.
AVESTAN
Old Iranian language.
AVESTANAncient Iranian language
AVESTANThus spake Zarathustra