Declension table of ?yavāsa

Masculine	Singular	Dual	Plural
Nominative	yavāsaḥ	yavāsau	yavāsāḥ
Vocative	yavāsa	yavāsau	yavāsāḥ
Accusative	yavāsam	yavāsau	yavāsān
Instrumental	yavāsena	yavāsābhyām	yavāsaiḥ yavāsebhiḥ
Dative	yavāsāya	yavāsābhyām	yavāsebhyaḥ
Ablative	yavāsāt	yavāsābhyām	yavāsebhyaḥ
Genitive	yavāsasya	yavāsayoḥ	yavāsānām
Locative	yavāse	yavāsayoḥ	yavāseṣu

Compound yavāsa -

Adverb -yavāsam -yavāsāt