Declension table of ?yāmamātra

Neuter	Singular	Dual	Plural
Nominative	yāmamātram	yāmamātre	yāmamātrāṇi
Vocative	yāmamātra	yāmamātre	yāmamātrāṇi
Accusative	yāmamātram	yāmamātre	yāmamātrāṇi
Instrumental	yāmamātreṇa	yāmamātrābhyām	yāmamātraiḥ
Dative	yāmamātrāya	yāmamātrābhyām	yāmamātrebhyaḥ
Ablative	yāmamātrāt	yāmamātrābhyām	yāmamātrebhyaḥ
Genitive	yāmamātrasya	yāmamātrayoḥ	yāmamātrāṇām
Locative	yāmamātre	yāmamātrayoḥ	yāmamātreṣu

Compound yāmamātra -

Adverb -yāmamātram -yāmamātrāt