Declension table of ?kumantrin

Masculine	Singular	Dual	Plural
Nominative	kumantrī	kumantriṇau	kumantriṇaḥ
Vocative	kumantrin	kumantriṇau	kumantriṇaḥ
Accusative	kumantriṇam	kumantriṇau	kumantriṇaḥ
Instrumental	kumantriṇā	kumantribhyām	kumantribhiḥ
Dative	kumantriṇe	kumantribhyām	kumantribhyaḥ
Ablative	kumantriṇaḥ	kumantribhyām	kumantribhyaḥ
Genitive	kumantriṇaḥ	kumantriṇoḥ	kumantriṇām
Locative	kumantriṇi	kumantriṇoḥ	kumantriṣu

Compound kumantri -

Adverb -kumantri