Declension table of ?hṛdayin

Masculine	Singular	Dual	Plural
Nominative	hṛdayī	hṛdayinau	hṛdayinaḥ
Vocative	hṛdayin	hṛdayinau	hṛdayinaḥ
Accusative	hṛdayinam	hṛdayinau	hṛdayinaḥ
Instrumental	hṛdayinā	hṛdayibhyām	hṛdayibhiḥ
Dative	hṛdayine	hṛdayibhyām	hṛdayibhyaḥ
Ablative	hṛdayinaḥ	hṛdayibhyām	hṛdayibhyaḥ
Genitive	hṛdayinaḥ	hṛdayinoḥ	hṛdayinām
Locative	hṛdayini	hṛdayinoḥ	hṛdayiṣu

Compound hṛdayi -

Adverb -hṛdayi