Declension table of ?suprasū

Feminine	Singular	Dual	Plural
Nominative	suprasūḥ	suprasuvau	suprasuvaḥ
Vocative	suprasūḥ suprasu	suprasuvau	suprasuvaḥ
Accusative	suprasuvam	suprasuvau	suprasuvaḥ
Instrumental	suprasuvā	suprasūbhyām	suprasūbhiḥ
Dative	suprasuvai suprasuve	suprasūbhyām	suprasūbhyaḥ
Ablative	suprasuvāḥ suprasuvaḥ	suprasūbhyām	suprasūbhyaḥ
Genitive	suprasuvāḥ suprasuvaḥ	suprasuvoḥ	suprasūnām suprasuvām
Locative	suprasuvi suprasuvām	suprasuvoḥ	suprasūṣu

Compound suprasū -

Adverb -suprasu