Declension table of ?atihāsa

Masculine	Singular	Dual	Plural
Nominative	atihāsaḥ	atihāsau	atihāsāḥ
Vocative	atihāsa	atihāsau	atihāsāḥ
Accusative	atihāsam	atihāsau	atihāsān
Instrumental	atihāsena	atihāsābhyām	atihāsaiḥ atihāsebhiḥ
Dative	atihāsāya	atihāsābhyām	atihāsebhyaḥ
Ablative	atihāsāt	atihāsābhyām	atihāsebhyaḥ
Genitive	atihāsasya	atihāsayoḥ	atihāsānām
Locative	atihāse	atihāsayoḥ	atihāseṣu

Compound atihāsa -

Adverb -atihāsam -atihāsāt