Declension table of ?vṛtraśatru

Masculine	Singular	Dual	Plural
Nominative	vṛtraśatruḥ	vṛtraśatrū	vṛtraśatravaḥ
Vocative	vṛtraśatro	vṛtraśatrū	vṛtraśatravaḥ
Accusative	vṛtraśatrum	vṛtraśatrū	vṛtraśatrūn
Instrumental	vṛtraśatruṇā	vṛtraśatrubhyām	vṛtraśatrubhiḥ
Dative	vṛtraśatrave	vṛtraśatrubhyām	vṛtraśatrubhyaḥ
Ablative	vṛtraśatroḥ	vṛtraśatrubhyām	vṛtraśatrubhyaḥ
Genitive	vṛtraśatroḥ	vṛtraśatrvoḥ	vṛtraśatrūṇām
Locative	vṛtraśatrau	vṛtraśatrvoḥ	vṛtraśatruṣu

Compound vṛtraśatru -

Adverb -vṛtraśatru