Declension table of ?himadhvasta

Masculine	Singular	Dual	Plural
Nominative	himadhvastaḥ	himadhvastau	himadhvastāḥ
Vocative	himadhvasta	himadhvastau	himadhvastāḥ
Accusative	himadhvastam	himadhvastau	himadhvastān
Instrumental	himadhvastena	himadhvastābhyām	himadhvastaiḥ himadhvastebhiḥ
Dative	himadhvastāya	himadhvastābhyām	himadhvastebhyaḥ
Ablative	himadhvastāt	himadhvastābhyām	himadhvastebhyaḥ
Genitive	himadhvastasya	himadhvastayoḥ	himadhvastānām
Locative	himadhvaste	himadhvastayoḥ	himadhvasteṣu

Compound himadhvasta -

Adverb -himadhvastam -himadhvastāt