Avestan /əˈvɛstɪk/ (also Avestic)

• 1. 

  N the oldest recorded language of the Iranian branch of the Indo-European family; the language of the Avesta 阿维斯陀语; 一种印欧语系家族的伊朗族分支所用的最古老的已记录语言 (Formerly called Zend)

• 2. 

  ADJ of or relating to the Avesta or its language 阿维斯陀的; 阿维斯陀语的