Declension table of ?saṃyogamantra

Masculine	Singular	Dual	Plural
Nominative	saṃyogamantraḥ	saṃyogamantrau	saṃyogamantrāḥ
Vocative	saṃyogamantra	saṃyogamantrau	saṃyogamantrāḥ
Accusative	saṃyogamantram	saṃyogamantrau	saṃyogamantrān
Instrumental	saṃyogamantreṇa	saṃyogamantrābhyām	saṃyogamantraiḥ saṃyogamantrebhiḥ
Dative	saṃyogamantrāya	saṃyogamantrābhyām	saṃyogamantrebhyaḥ
Ablative	saṃyogamantrāt	saṃyogamantrābhyām	saṃyogamantrebhyaḥ
Genitive	saṃyogamantrasya	saṃyogamantrayoḥ	saṃyogamantrāṇām
Locative	saṃyogamantre	saṃyogamantrayoḥ	saṃyogamantreṣu

Compound saṃyogamantra -

Adverb -saṃyogamantram -saṃyogamantrāt