Declension table of ?mathra

Neuter	Singular	Dual	Plural
Nominative	mathram	mathre	mathrāṇi
Vocative	mathra	mathre	mathrāṇi
Accusative	mathram	mathre	mathrāṇi
Instrumental	mathreṇa	mathrābhyām	mathraiḥ
Dative	mathrāya	mathrābhyām	mathrebhyaḥ
Ablative	mathrāt	mathrābhyām	mathrebhyaḥ
Genitive	mathrasya	mathrayoḥ	mathrāṇām
Locative	mathre	mathrayoḥ	mathreṣu

Compound mathra -

Adverb -mathram -mathrāt