Declension table of ?śivāyatana

Neuter	Singular	Dual	Plural
Nominative	śivāyatanam	śivāyatane	śivāyatanāni
Vocative	śivāyatana	śivāyatane	śivāyatanāni
Accusative	śivāyatanam	śivāyatane	śivāyatanāni
Instrumental	śivāyatanena	śivāyatanābhyām	śivāyatanaiḥ
Dative	śivāyatanāya	śivāyatanābhyām	śivāyatanebhyaḥ
Ablative	śivāyatanāt	śivāyatanābhyām	śivāyatanebhyaḥ
Genitive	śivāyatanasya	śivāyatanayoḥ	śivāyatanānām
Locative	śivāyatane	śivāyatanayoḥ	śivāyataneṣu

Compound śivāyatana -

Adverb -śivāyatanam -śivāyatanāt