Declension table of ?tṛṇasa

Neuter	Singular	Dual	Plural
Nominative	tṛṇasam	tṛṇase	tṛṇasāni
Vocative	tṛṇasa	tṛṇase	tṛṇasāni
Accusative	tṛṇasam	tṛṇase	tṛṇasāni
Instrumental	tṛṇasena	tṛṇasābhyām	tṛṇasaiḥ
Dative	tṛṇasāya	tṛṇasābhyām	tṛṇasebhyaḥ
Ablative	tṛṇasāt	tṛṇasābhyām	tṛṇasebhyaḥ
Genitive	tṛṇasasya	tṛṇasayoḥ	tṛṇasānām
Locative	tṛṇase	tṛṇasayoḥ	tṛṇaseṣu

Compound tṛṇasa -

Adverb -tṛṇasam -tṛṇasāt