Declension table of ?yamavrata

Neuter	Singular	Dual	Plural
Nominative	yamavratam	yamavrate	yamavratāni
Vocative	yamavrata	yamavrate	yamavratāni
Accusative	yamavratam	yamavrate	yamavratāni
Instrumental	yamavratena	yamavratābhyām	yamavrataiḥ
Dative	yamavratāya	yamavratābhyām	yamavratebhyaḥ
Ablative	yamavratāt	yamavratābhyām	yamavratebhyaḥ
Genitive	yamavratasya	yamavratayoḥ	yamavratānām
Locative	yamavrate	yamavratayoḥ	yamavrateṣu

Compound yamavrata -

Adverb -yamavratam -yamavratāt