What's the "een" in Halloween?
early 14c., "keep in mind, retain in the memory," from Old French remembrer "remember, recall, bring to mind" (11c.), from Latin rememorari "recall to mind, remember," from re- "again" (see re-) + memorari "be mindful of," from memor "mindful" (see memory). Meaning "recall to mind" is late 14c.; sense of "to mention" is from 1550s. Also in Middle English "to remind" (someone). An Anglo-Saxon verb for it was gemunan.
remember re·mem·ber (rĭ-měm'bər)
v. re·mem·bered, re·mem·ber·ing, re·mem·bers
To recall to the mind; think of again.
To retain in the memory.
To return to an original shape or form after being deformed or altered.