Declension table of ?tṛtīyāṃśa

Masculine	Singular	Dual	Plural
Nominative	tṛtīyāṃśaḥ	tṛtīyāṃśau	tṛtīyāṃśāḥ
Vocative	tṛtīyāṃśa	tṛtīyāṃśau	tṛtīyāṃśāḥ
Accusative	tṛtīyāṃśam	tṛtīyāṃśau	tṛtīyāṃśān
Instrumental	tṛtīyāṃśena	tṛtīyāṃśābhyām	tṛtīyāṃśaiḥ tṛtīyāṃśebhiḥ
Dative	tṛtīyāṃśāya	tṛtīyāṃśābhyām	tṛtīyāṃśebhyaḥ
Ablative	tṛtīyāṃśāt	tṛtīyāṃśābhyām	tṛtīyāṃśebhyaḥ
Genitive	tṛtīyāṃśasya	tṛtīyāṃśayoḥ	tṛtīyāṃśānām
Locative	tṛtīyāṃśe	tṛtīyāṃśayoḥ	tṛtīyāṃśeṣu

Compound tṛtīyāṃśa -

Adverb -tṛtīyāṃśam -tṛtīyāṃśāt