Mātṛkā

mātṛkā can also refer to Mamo — wrathful feminine deities forming part of Ekadzati’s entourage.

mātṛkā (摩得勒伽). The Sanskrit word mātṛkā means divine mother. It refers to all the treatises in the Abhidharma-piṭaka, and those in the upadeśa, which is the twelfth of the twelve categories of the Buddha’s teachings.

Source

www.sutrasmantras.info