Declension table of ?goṣan

Masculine	Singular	Dual	Plural
Nominative	goṣā	goṣāṇau	goṣāṇaḥ
Vocative	goṣan	goṣāṇau	goṣāṇaḥ
Accusative	goṣāṇam	goṣāṇau	goṣṇaḥ
Instrumental	goṣṇā	goṣabhyām	goṣabhiḥ
Dative	goṣṇe	goṣabhyām	goṣabhyaḥ
Ablative	goṣṇaḥ	goṣabhyām	goṣabhyaḥ
Genitive	goṣṇaḥ	goṣṇoḥ	goṣṇām
Locative	goṣṇi goṣaṇi	goṣṇoḥ	goṣasu

Compound goṣa -

Adverb -goṣam