Declension table of ?mātṛmat

Masculine	Singular	Dual	Plural
Nominative	mātṛmān	mātṛmantau	mātṛmantaḥ
Vocative	mātṛman	mātṛmantau	mātṛmantaḥ
Accusative	mātṛmantam	mātṛmantau	mātṛmataḥ
Instrumental	mātṛmatā	mātṛmadbhyām	mātṛmadbhiḥ
Dative	mātṛmate	mātṛmadbhyām	mātṛmadbhyaḥ
Ablative	mātṛmataḥ	mātṛmadbhyām	mātṛmadbhyaḥ
Genitive	mātṛmataḥ	mātṛmatoḥ	mātṛmatām
Locative	mātṛmati	mātṛmatoḥ	mātṛmatsu

Compound mātṛmat -

Adverb -mātṛmantam