Declension table of ?avartra

Masculine	Singular	Dual	Plural
Nominative	avartraḥ	avartrau	avartrāḥ
Vocative	avartra	avartrau	avartrāḥ
Accusative	avartram	avartrau	avartrān
Instrumental	avartreṇa	avartrābhyām	avartraiḥ avartrebhiḥ
Dative	avartrāya	avartrābhyām	avartrebhyaḥ
Ablative	avartrāt	avartrābhyām	avartrebhyaḥ
Genitive	avartrasya	avartrayoḥ	avartrāṇām
Locative	avartre	avartrayoḥ	avartreṣu

Compound avartra -

Adverb -avartram -avartrāt