Declension table of tāmasa

Masculine	Singular	Dual	Plural
Nominative	tāmasaḥ	tāmasau	tāmasāḥ
Vocative	tāmasa	tāmasau	tāmasāḥ
Accusative	tāmasam	tāmasau	tāmasān
Instrumental	tāmasena	tāmasābhyām	tāmasaiḥ tāmasebhiḥ
Dative	tāmasāya	tāmasābhyām	tāmasebhyaḥ
Ablative	tāmasāt	tāmasābhyām	tāmasebhyaḥ
Genitive	tāmasasya	tāmasayoḥ	tāmasānām
Locative	tāmase	tāmasayoḥ	tāmaseṣu

Compound tāmasa -

Adverb -tāmasam -tāmasāt