Declension table of ?sampa

Masculine	Singular	Dual	Plural
Nominative	sampaḥ	sampau	sampāḥ
Vocative	sampa	sampau	sampāḥ
Accusative	sampam	sampau	sampān
Instrumental	sampena	sampābhyām	sampaiḥ sampebhiḥ
Dative	sampāya	sampābhyām	sampebhyaḥ
Ablative	sampāt	sampābhyām	sampebhyaḥ
Genitive	sampasya	sampayoḥ	sampānām
Locative	sampe	sampayoḥ	sampeṣu

Compound sampa -

Adverb -sampam -sampāt