Declension table of ?aptu

Masculine	Singular	Dual	Plural
Nominative	aptuḥ	aptū	aptavaḥ
Vocative	apto	aptū	aptavaḥ
Accusative	aptum	aptū	aptūn
Instrumental	aptunā	aptubhyām	aptubhiḥ
Dative	aptave	aptubhyām	aptubhyaḥ
Ablative	aptoḥ	aptubhyām	aptubhyaḥ
Genitive	aptoḥ	aptvoḥ	aptūnām
Locative	aptau	aptvoḥ	aptuṣu

Compound aptu -

Adverb -aptu