Declension table of ?rantavya

Neuter	Singular	Dual	Plural
Nominative	rantavyam	rantavye	rantavyāni
Vocative	rantavya	rantavye	rantavyāni
Accusative	rantavyam	rantavye	rantavyāni
Instrumental	rantavyena	rantavyābhyām	rantavyaiḥ
Dative	rantavyāya	rantavyābhyām	rantavyebhyaḥ
Ablative	rantavyāt	rantavyābhyām	rantavyebhyaḥ
Genitive	rantavyasya	rantavyayoḥ	rantavyānām
Locative	rantavye	rantavyayoḥ	rantavyeṣu

Compound rantavya -

Adverb -rantavyam -rantavyāt