Declension table of ?āyāsya

Neuter	Singular	Dual	Plural
Nominative	āyāsyam	āyāsye	āyāsyāni
Vocative	āyāsya	āyāsye	āyāsyāni
Accusative	āyāsyam	āyāsye	āyāsyāni
Instrumental	āyāsyena	āyāsyābhyām	āyāsyaiḥ
Dative	āyāsyāya	āyāsyābhyām	āyāsyebhyaḥ
Ablative	āyāsyāt	āyāsyābhyām	āyāsyebhyaḥ
Genitive	āyāsyasya	āyāsyayoḥ	āyāsyānām
Locative	āyāsye	āyāsyayoḥ	āyāsyeṣu

Compound āyāsya -

Adverb -āyāsyam -āyāsyāt