Declension table of ?atharvāṅgirasa

Neuter	Singular	Dual	Plural
Nominative	atharvāṅgirasam	atharvāṅgirase	atharvāṅgirasāni
Vocative	atharvāṅgirasa	atharvāṅgirase	atharvāṅgirasāni
Accusative	atharvāṅgirasam	atharvāṅgirase	atharvāṅgirasāni
Instrumental	atharvāṅgirasena	atharvāṅgirasābhyām	atharvāṅgirasaiḥ
Dative	atharvāṅgirasāya	atharvāṅgirasābhyām	atharvāṅgirasebhyaḥ
Ablative	atharvāṅgirasāt	atharvāṅgirasābhyām	atharvāṅgirasebhyaḥ
Genitive	atharvāṅgirasasya	atharvāṅgirasayoḥ	atharvāṅgirasānām
Locative	atharvāṅgirase	atharvāṅgirasayoḥ	atharvāṅgiraseṣu

Compound atharvāṅgirasa -

Adverb -atharvāṅgirasam -atharvāṅgirasāt