A ṛṣi(rishi; sage) belonging to the Āṇgirasa(Angirasa) vaṁśa (the genealogical or disciple-wise line of sages). Ārṣabha is one of the ṛṣivaṁśas, belonging to the gotra (clan) of Maharṣi (Maharshi; great sage) Aṇgirā (Angira). According to the genealogical or disciple-wise line from Aṇgirā, they are also known as Āṇgirasa (Angirasa).