Declension table of ?preyaskara

Masculine	Singular	Dual	Plural
Nominative	preyaskaraḥ	preyaskarau	preyaskarāḥ
Vocative	preyaskara	preyaskarau	preyaskarāḥ
Accusative	preyaskaram	preyaskarau	preyaskarān
Instrumental	preyaskareṇa	preyaskarābhyām	preyaskaraiḥ preyaskarebhiḥ
Dative	preyaskarāya	preyaskarābhyām	preyaskarebhyaḥ
Ablative	preyaskarāt	preyaskarābhyām	preyaskarebhyaḥ
Genitive	preyaskarasya	preyaskarayoḥ	preyaskarāṇām
Locative	preyaskare	preyaskarayoḥ	preyaskareṣu

Compound preyaskara -

Adverb -preyaskaram -preyaskarāt