Declension table of ?tasthagvas

Masculine	Singular	Dual	Plural
Nominative	tasthagvān	tasthagvāṃsau	tasthagvāṃsaḥ
Vocative	tasthagvan	tasthagvāṃsau	tasthagvāṃsaḥ
Accusative	tasthagvāṃsam	tasthagvāṃsau	tasthaguṣaḥ
Instrumental	tasthaguṣā	tasthagvadbhyām	tasthagvadbhiḥ
Dative	tasthaguṣe	tasthagvadbhyām	tasthagvadbhyaḥ
Ablative	tasthaguṣaḥ	tasthagvadbhyām	tasthagvadbhyaḥ
Genitive	tasthaguṣaḥ	tasthaguṣoḥ	tasthaguṣām
Locative	tasthaguṣi	tasthaguṣoḥ	tasthagvatsu

Compound tasthagvat -

Adverb -tasthagvas