Declension table of ?goṣṭheśaya

Neuter	Singular	Dual	Plural
Nominative	goṣṭheśayam	goṣṭheśaye	goṣṭheśayāni
Vocative	goṣṭheśaya	goṣṭheśaye	goṣṭheśayāni
Accusative	goṣṭheśayam	goṣṭheśaye	goṣṭheśayāni
Instrumental	goṣṭheśayena	goṣṭheśayābhyām	goṣṭheśayaiḥ
Dative	goṣṭheśayāya	goṣṭheśayābhyām	goṣṭheśayebhyaḥ
Ablative	goṣṭheśayāt	goṣṭheśayābhyām	goṣṭheśayebhyaḥ
Genitive	goṣṭheśayasya	goṣṭheśayayoḥ	goṣṭheśayānām
Locative	goṣṭheśaye	goṣṭheśayayoḥ	goṣṭheśayeṣu

Compound goṣṭheśaya -

Adverb -goṣṭheśayam -goṣṭheśayāt