Declension table of ?svaptṛ

Masculine	Singular	Dual	Plural
Nominative	svaptā	svaptārau	svaptāraḥ
Vocative	svaptaḥ	svaptārau	svaptāraḥ
Accusative	svaptāram	svaptārau	svaptṝn
Instrumental	svaptrā	svaptṛbhyām	svaptṛbhiḥ
Dative	svaptre	svaptṛbhyām	svaptṛbhyaḥ
Ablative	svaptuḥ	svaptṛbhyām	svaptṛbhyaḥ
Genitive	svaptuḥ	svaptroḥ	svaptṝṇām
Locative	svaptari	svaptroḥ	svaptṛṣu

Compound svaptṛ -

Adverb -svaptṛ