Declension table of ?tarpaka

Neuter	Singular	Dual	Plural
Nominative	tarpakam	tarpake	tarpakāṇi
Vocative	tarpaka	tarpake	tarpakāṇi
Accusative	tarpakam	tarpake	tarpakāṇi
Instrumental	tarpakeṇa	tarpakābhyām	tarpakaiḥ
Dative	tarpakāya	tarpakābhyām	tarpakebhyaḥ
Ablative	tarpakāt	tarpakābhyām	tarpakebhyaḥ
Genitive	tarpakasya	tarpakayoḥ	tarpakāṇām
Locative	tarpake	tarpakayoḥ	tarpakeṣu

Compound tarpaka -

Adverb -tarpakam -tarpakāt