Declension table of ?saṃvṛtamantra

Masculine	Singular	Dual	Plural
Nominative	saṃvṛtamantraḥ	saṃvṛtamantrau	saṃvṛtamantrāḥ
Vocative	saṃvṛtamantra	saṃvṛtamantrau	saṃvṛtamantrāḥ
Accusative	saṃvṛtamantram	saṃvṛtamantrau	saṃvṛtamantrān
Instrumental	saṃvṛtamantreṇa	saṃvṛtamantrābhyām	saṃvṛtamantraiḥ saṃvṛtamantrebhiḥ
Dative	saṃvṛtamantrāya	saṃvṛtamantrābhyām	saṃvṛtamantrebhyaḥ
Ablative	saṃvṛtamantrāt	saṃvṛtamantrābhyām	saṃvṛtamantrebhyaḥ
Genitive	saṃvṛtamantrasya	saṃvṛtamantrayoḥ	saṃvṛtamantrāṇām
Locative	saṃvṛtamantre	saṃvṛtamantrayoḥ	saṃvṛtamantreṣu

Compound saṃvṛtamantra -

Adverb -saṃvṛtamantram -saṃvṛtamantrāt