mid-15c., "worthy to be remembered, not to be forgotten," from Latin memorabilis "that may be told; worthy of being remembered, remarkable," from memorare "to bring to mind," from memor "mindful of" (from PIE root *(s)mer- (1) "to remember"). Related: Memorably; memorableness.
memo
memoir
memoirs
memorabilia
memorability
memorable
memorandum
memorial
Memorial Day
memorialize
memorious