Declension table of ?ṣṭhīvyat

Masculine	Singular	Dual	Plural
Nominative	ṣṭhīvyan	ṣṭhīvyantau	ṣṭhīvyantaḥ
Vocative	ṣṭhīvyan	ṣṭhīvyantau	ṣṭhīvyantaḥ
Accusative	ṣṭhīvyantam	ṣṭhīvyantau	ṣṭhīvyataḥ
Instrumental	ṣṭhīvyatā	ṣṭhīvyadbhyām	ṣṭhīvyadbhiḥ
Dative	ṣṭhīvyate	ṣṭhīvyadbhyām	ṣṭhīvyadbhyaḥ
Ablative	ṣṭhīvyataḥ	ṣṭhīvyadbhyām	ṣṭhīvyadbhyaḥ
Genitive	ṣṭhīvyataḥ	ṣṭhīvyatoḥ	ṣṭhīvyatām
Locative	ṣṭhīvyati	ṣṭhīvyatoḥ	ṣṭhīvyatsu

Compound ṣṭhīvyat -

Adverb -ṣṭhīvyantam