Declension table of ?samantra

Neuter	Singular	Dual	Plural
Nominative	samantram	samantre	samantrāṇi
Vocative	samantra	samantre	samantrāṇi
Accusative	samantram	samantre	samantrāṇi
Instrumental	samantreṇa	samantrābhyām	samantraiḥ
Dative	samantrāya	samantrābhyām	samantrebhyaḥ
Ablative	samantrāt	samantrābhyām	samantrebhyaḥ
Genitive	samantrasya	samantrayoḥ	samantrāṇām
Locative	samantre	samantrayoḥ	samantreṣu

Compound samantra -

Adverb -samantram -samantrāt