Declension table of ?vecayamāna

Neuter	Singular	Dual	Plural
Nominative	vecayamānam	vecayamāne	vecayamānāni
Vocative	vecayamāna	vecayamāne	vecayamānāni
Accusative	vecayamānam	vecayamāne	vecayamānāni
Instrumental	vecayamānena	vecayamānābhyām	vecayamānaiḥ
Dative	vecayamānāya	vecayamānābhyām	vecayamānebhyaḥ
Ablative	vecayamānāt	vecayamānābhyām	vecayamānebhyaḥ
Genitive	vecayamānasya	vecayamānayoḥ	vecayamānānām
Locative	vecayamāne	vecayamānayoḥ	vecayamāneṣu

Compound vecayamāna -

Adverb -vecayamānam -vecayamānāt