Declension table of ?sāyavasa

Masculine	Singular	Dual	Plural
Nominative	sāyavasaḥ	sāyavasau	sāyavasāḥ
Vocative	sāyavasa	sāyavasau	sāyavasāḥ
Accusative	sāyavasam	sāyavasau	sāyavasān
Instrumental	sāyavasena	sāyavasābhyām	sāyavasaiḥ sāyavasebhiḥ
Dative	sāyavasāya	sāyavasābhyām	sāyavasebhyaḥ
Ablative	sāyavasāt	sāyavasābhyām	sāyavasebhyaḥ
Genitive	sāyavasasya	sāyavasayoḥ	sāyavasānām
Locative	sāyavase	sāyavasayoḥ	sāyavaseṣu

Compound sāyavasa -

Adverb -sāyavasam -sāyavasāt