Declension table of ?pyāyana

Neuter	Singular	Dual	Plural
Nominative	pyāyanam	pyāyane	pyāyanāni
Vocative	pyāyana	pyāyane	pyāyanāni
Accusative	pyāyanam	pyāyane	pyāyanāni
Instrumental	pyāyanena	pyāyanābhyām	pyāyanaiḥ
Dative	pyāyanāya	pyāyanābhyām	pyāyanebhyaḥ
Ablative	pyāyanāt	pyāyanābhyām	pyāyanebhyaḥ
Genitive	pyāyanasya	pyāyanayoḥ	pyāyanānām
Locative	pyāyane	pyāyanayoḥ	pyāyaneṣu

Compound pyāyana -

Adverb -pyāyanam -pyāyanāt