Declension table of ?ṛptha

Masculine	Singular	Dual	Plural
Nominative	ṛpthaḥ	ṛpthau	ṛpthāḥ
Vocative	ṛptha	ṛpthau	ṛpthāḥ
Accusative	ṛptham	ṛpthau	ṛpthān
Instrumental	ṛpthena	ṛpthābhyām	ṛpthaiḥ ṛpthebhiḥ
Dative	ṛpthāya	ṛpthābhyām	ṛpthebhyaḥ
Ablative	ṛpthāt	ṛpthābhyām	ṛpthebhyaḥ
Genitive	ṛpthasya	ṛpthayoḥ	ṛpthānām
Locative	ṛpthe	ṛpthayoḥ	ṛptheṣu

Compound ṛptha -

Adverb -ṛptham -ṛpthāt