Declension table of ?samantrin

Masculine	Singular	Dual	Plural
Nominative	samantrī	samantriṇau	samantriṇaḥ
Vocative	samantrin	samantriṇau	samantriṇaḥ
Accusative	samantriṇam	samantriṇau	samantriṇaḥ
Instrumental	samantriṇā	samantribhyām	samantribhiḥ
Dative	samantriṇe	samantribhyām	samantribhyaḥ
Ablative	samantriṇaḥ	samantribhyām	samantribhyaḥ
Genitive	samantriṇaḥ	samantriṇoḥ	samantriṇām
Locative	samantriṇi	samantriṇoḥ	samantriṣu

Compound samantri -

Adverb -samantri