Declension table of ?anupāya

Neuter	Singular	Dual	Plural
Nominative	anupāyam	anupāye	anupāyāni
Vocative	anupāya	anupāye	anupāyāni
Accusative	anupāyam	anupāye	anupāyāni
Instrumental	anupāyena	anupāyābhyām	anupāyaiḥ
Dative	anupāyāya	anupāyābhyām	anupāyebhyaḥ
Ablative	anupāyāt	anupāyābhyām	anupāyebhyaḥ
Genitive	anupāyasya	anupāyayoḥ	anupāyānām
Locative	anupāye	anupāyayoḥ	anupāyeṣu

Compound anupāya -

Adverb -anupāyam -anupāyāt