Declension table of ?āpsava

Masculine	Singular	Dual	Plural
Nominative	āpsavaḥ	āpsavau	āpsavāḥ
Vocative	āpsava	āpsavau	āpsavāḥ
Accusative	āpsavam	āpsavau	āpsavān
Instrumental	āpsavena	āpsavābhyām	āpsavaiḥ āpsavebhiḥ
Dative	āpsavāya	āpsavābhyām	āpsavebhyaḥ
Ablative	āpsavāt	āpsavābhyām	āpsavebhyaḥ
Genitive	āpsavasya	āpsavayoḥ	āpsavānām
Locative	āpsave	āpsavayoḥ	āpsaveṣu

Compound āpsava -

Adverb -āpsavam -āpsavāt