Declension table of ?yāvasa

Masculine	Singular	Dual	Plural
Nominative	yāvasaḥ	yāvasau	yāvasāḥ
Vocative	yāvasa	yāvasau	yāvasāḥ
Accusative	yāvasam	yāvasau	yāvasān
Instrumental	yāvasena	yāvasābhyām	yāvasaiḥ yāvasebhiḥ
Dative	yāvasāya	yāvasābhyām	yāvasebhyaḥ
Ablative	yāvasāt	yāvasābhyām	yāvasebhyaḥ
Genitive	yāvasasya	yāvasayoḥ	yāvasānām
Locative	yāvase	yāvasayoḥ	yāvaseṣu

Compound yāvasa -

Adverb -yāvasam -yāvasāt