Declension table of ?adhyastha

Neuter	Singular	Dual	Plural
Nominative	adhyastham	adhyasthe	adhyasthāni
Vocative	adhyastha	adhyasthe	adhyasthāni
Accusative	adhyastham	adhyasthe	adhyasthāni
Instrumental	adhyasthena	adhyasthābhyām	adhyasthaiḥ
Dative	adhyasthāya	adhyasthābhyām	adhyasthebhyaḥ
Ablative	adhyasthāt	adhyasthābhyām	adhyasthebhyaḥ
Genitive	adhyasthasya	adhyasthayoḥ	adhyasthānām
Locative	adhyasthe	adhyasthayoḥ	adhyastheṣu

Compound adhyastha -

Adverb -adhyastham -adhyasthāt