Declension table of ?yayeṣvas

Masculine	Singular	Dual	Plural
Nominative	yayeṣvān	yayeṣvāṃsau	yayeṣvāṃsaḥ
Vocative	yayeṣvan	yayeṣvāṃsau	yayeṣvāṃsaḥ
Accusative	yayeṣvāṃsam	yayeṣvāṃsau	yayeṣuṣaḥ
Instrumental	yayeṣuṣā	yayeṣvadbhyām	yayeṣvadbhiḥ
Dative	yayeṣuṣe	yayeṣvadbhyām	yayeṣvadbhyaḥ
Ablative	yayeṣuṣaḥ	yayeṣvadbhyām	yayeṣvadbhyaḥ
Genitive	yayeṣuṣaḥ	yayeṣuṣoḥ	yayeṣuṣām
Locative	yayeṣuṣi	yayeṣuṣoḥ	yayeṣvatsu

Compound yayeṣvat -

Adverb -yayeṣvas