Declension table of ?yavayasa

Masculine	Singular	Dual	Plural
Nominative	yavayasaḥ	yavayasau	yavayasāḥ
Vocative	yavayasa	yavayasau	yavayasāḥ
Accusative	yavayasam	yavayasau	yavayasān
Instrumental	yavayasena	yavayasābhyām	yavayasaiḥ yavayasebhiḥ
Dative	yavayasāya	yavayasābhyām	yavayasebhyaḥ
Ablative	yavayasāt	yavayasābhyām	yavayasebhyaḥ
Genitive	yavayasasya	yavayasayoḥ	yavayasānām
Locative	yavayase	yavayasayoḥ	yavayaseṣu

Compound yavayasa -

Adverb -yavayasam -yavayasāt