Declension table of ?kartṛmat

Masculine	Singular	Dual	Plural
Nominative	kartṛmān	kartṛmantau	kartṛmantaḥ
Vocative	kartṛman	kartṛmantau	kartṛmantaḥ
Accusative	kartṛmantam	kartṛmantau	kartṛmataḥ
Instrumental	kartṛmatā	kartṛmadbhyām	kartṛmadbhiḥ
Dative	kartṛmate	kartṛmadbhyām	kartṛmadbhyaḥ
Ablative	kartṛmataḥ	kartṛmadbhyām	kartṛmadbhyaḥ
Genitive	kartṛmataḥ	kartṛmatoḥ	kartṛmatām
Locative	kartṛmati	kartṛmatoḥ	kartṛmatsu

Compound kartṛmat -

Adverb -kartṛmantam