Declension table of ?yayācvas

Neuter	Singular	Dual	Plural
Nominative	yayācvat	yayācuṣī	yayācvāṃsi
Vocative	yayācvat	yayācuṣī	yayācvāṃsi
Accusative	yayācvat	yayācuṣī	yayācvāṃsi
Instrumental	yayācuṣā	yayācvadbhyām	yayācvadbhiḥ
Dative	yayācuṣe	yayācvadbhyām	yayācvadbhyaḥ
Ablative	yayācuṣaḥ	yayācvadbhyām	yayācvadbhyaḥ
Genitive	yayācuṣaḥ	yayācuṣoḥ	yayācuṣām
Locative	yayācuṣi	yayācuṣoḥ	yayācvatsu

Compound yayācvat -

Adverb -yayācvat