Declension table of ?apathin

Masculine	Singular	Dual	Plural
Nominative	apanthāḥ	apanthānau	apanthānaḥ
Vocative	apanthāḥ	apanthānau	apanthānaḥ
Accusative	apanthānam	apanthānau	apathaḥ
Instrumental	apathā	apathibhyām	apathibhiḥ
Dative	apathe	apathibhyām	apathibhyaḥ
Ablative	apathaḥ	apathibhyām	apathibhyaḥ
Genitive	apathaḥ	apathoḥ	apathām
Locative	apathi	apathoḥ	apathiṣu

Compound apathi -

Adverb -apatham