Mnemosyne n 1: (Greek mythology) the Titaness who was goddess of memory; mother of the Muses
Mnemosyne \Mne*mos"y*ne\, n. [L., fr. Gr. mnhmosy`nh remembrance, memory, and the goddess of memory. See {Mnemonic}.] (Class Myth.) The goddess of memory and the mother of the Muses. [1913 Webster]