Declension table of ?tṛdya

Masculine	Singular	Dual	Plural
Nominative	tṛdyaḥ	tṛdyau	tṛdyāḥ
Vocative	tṛdya	tṛdyau	tṛdyāḥ
Accusative	tṛdyam	tṛdyau	tṛdyān
Instrumental	tṛdyena	tṛdyābhyām	tṛdyaiḥ tṛdyebhiḥ
Dative	tṛdyāya	tṛdyābhyām	tṛdyebhyaḥ
Ablative	tṛdyāt	tṛdyābhyām	tṛdyebhyaḥ
Genitive	tṛdyasya	tṛdyayoḥ	tṛdyānām
Locative	tṛdye	tṛdyayoḥ	tṛdyeṣu

Compound tṛdya -

Adverb -tṛdyam -tṛdyāt