Declension table of ?hṛdayastha

Masculine	Singular	Dual	Plural
Nominative	hṛdayasthaḥ	hṛdayasthau	hṛdayasthāḥ
Vocative	hṛdayastha	hṛdayasthau	hṛdayasthāḥ
Accusative	hṛdayastham	hṛdayasthau	hṛdayasthān
Instrumental	hṛdayasthena	hṛdayasthābhyām	hṛdayasthaiḥ hṛdayasthebhiḥ
Dative	hṛdayasthāya	hṛdayasthābhyām	hṛdayasthebhyaḥ
Ablative	hṛdayasthāt	hṛdayasthābhyām	hṛdayasthebhyaḥ
Genitive	hṛdayasthasya	hṛdayasthayoḥ	hṛdayasthānām
Locative	hṛdayasthe	hṛdayasthayoḥ	hṛdayastheṣu

Compound hṛdayastha -

Adverb -hṛdayastham -hṛdayasthāt