9 letters · 15 points in Scrabble
noun a method or system for improving the memory
noun a device (such as a rhyme or acronym) used to aid recall
originFrom Ancient Greek μνημονικά (mnēmoniká, “mnemonics”), plural of μνημονικόν (mnēmonikón, “mnemonics”), neuter of μνημονικός (mnēmonikós, “mnemonic”); see mnemonic.
Etymology from Wiktionary, CC BY-SA 3.0