Declension table of ?śithira

Masculine	Singular	Dual	Plural
Nominative	śithiraḥ	śithirau	śithirāḥ
Vocative	śithira	śithirau	śithirāḥ
Accusative	śithiram	śithirau	śithirān
Instrumental	śithireṇa	śithirābhyām	śithiraiḥ śithirebhiḥ
Dative	śithirāya	śithirābhyām	śithirebhyaḥ
Ablative	śithirāt	śithirābhyām	śithirebhyaḥ
Genitive	śithirasya	śithirayoḥ	śithirāṇām
Locative	śithire	śithirayoḥ	śithireṣu

Compound śithira -

Adverb -śithiram -śithirāt