Declension table of ?sapatnavṛddhi

Feminine	Singular	Dual	Plural
Nominative	sapatnavṛddhiḥ	sapatnavṛddhī	sapatnavṛddhayaḥ
Vocative	sapatnavṛddhe	sapatnavṛddhī	sapatnavṛddhayaḥ
Accusative	sapatnavṛddhim	sapatnavṛddhī	sapatnavṛddhīḥ
Instrumental	sapatnavṛddhyā	sapatnavṛddhibhyām	sapatnavṛddhibhiḥ
Dative	sapatnavṛddhyai sapatnavṛddhaye	sapatnavṛddhibhyām	sapatnavṛddhibhyaḥ
Ablative	sapatnavṛddhyāḥ sapatnavṛddheḥ	sapatnavṛddhibhyām	sapatnavṛddhibhyaḥ
Genitive	sapatnavṛddhyāḥ sapatnavṛddheḥ	sapatnavṛddhyoḥ	sapatnavṛddhīnām
Locative	sapatnavṛddhyām sapatnavṛddhau	sapatnavṛddhyoḥ	sapatnavṛddhiṣu

Compound sapatnavṛddhi -

Adverb -sapatnavṛddhi