Declension table of ?vaptṛ

Masculine	Singular	Dual	Plural
Nominative	vaptā	vaptārau	vaptāraḥ
Vocative	vaptaḥ	vaptārau	vaptāraḥ
Accusative	vaptāram	vaptārau	vaptṝn
Instrumental	vaptrā	vaptṛbhyām	vaptṛbhiḥ
Dative	vaptre	vaptṛbhyām	vaptṛbhyaḥ
Ablative	vaptuḥ	vaptṛbhyām	vaptṛbhyaḥ
Genitive	vaptuḥ	vaptroḥ	vaptṝṇām
Locative	vaptari	vaptroḥ	vaptṛṣu

Compound vaptṛ -

Adverb -vaptṛ