Declension table of ?agnivṛddhi

Feminine	Singular	Dual	Plural
Nominative	agnivṛddhiḥ	agnivṛddhī	agnivṛddhayaḥ
Vocative	agnivṛddhe	agnivṛddhī	agnivṛddhayaḥ
Accusative	agnivṛddhim	agnivṛddhī	agnivṛddhīḥ
Instrumental	agnivṛddhyā	agnivṛddhibhyām	agnivṛddhibhiḥ
Dative	agnivṛddhyai agnivṛddhaye	agnivṛddhibhyām	agnivṛddhibhyaḥ
Ablative	agnivṛddhyāḥ agnivṛddheḥ	agnivṛddhibhyām	agnivṛddhibhyaḥ
Genitive	agnivṛddhyāḥ agnivṛddheḥ	agnivṛddhyoḥ	agnivṛddhīnām
Locative	agnivṛddhyām agnivṛddhau	agnivṛddhyoḥ	agnivṛddhiṣu

Compound agnivṛddhi -

Adverb -agnivṛddhi