Declension table of ?surta

Neuter	Singular	Dual	Plural
Nominative	surtam	surte	surtāni
Vocative	surta	surte	surtāni
Accusative	surtam	surte	surtāni
Instrumental	surtena	surtābhyām	surtaiḥ
Dative	surtāya	surtābhyām	surtebhyaḥ
Ablative	surtāt	surtābhyām	surtebhyaḥ
Genitive	surtasya	surtayoḥ	surtānām
Locative	surte	surtayoḥ	surteṣu

Compound surta -

Adverb -surtam -surtāt