Declension table of ?tṛṇaka

Neuter	Singular	Dual	Plural
Nominative	tṛṇakam	tṛṇake	tṛṇakāni
Vocative	tṛṇaka	tṛṇake	tṛṇakāni
Accusative	tṛṇakam	tṛṇake	tṛṇakāni
Instrumental	tṛṇakena	tṛṇakābhyām	tṛṇakaiḥ
Dative	tṛṇakāya	tṛṇakābhyām	tṛṇakebhyaḥ
Ablative	tṛṇakāt	tṛṇakābhyām	tṛṇakebhyaḥ
Genitive	tṛṇakasya	tṛṇakayoḥ	tṛṇakānām
Locative	tṛṇake	tṛṇakayoḥ	tṛṇakeṣu

Compound tṛṇaka -

Adverb -tṛṇakam -tṛṇakāt