Idiom idiom

memento mori

C2 Literary Roman origin

Meaning

A reminder that you are going to die, and that this should change how you spend the time.

Examples

SIMPLE

“The skull on the shelf is a memento mori.”

CONTEXTUAL

“Reading the obituaries of people his own age had become a daily memento mori.”

COMPLEX

“The portrait is a straightforward memento mori — the sitter in his finery, an hourglass at his elbow, and a small skull placed where his hand would naturally fall, so that he cannot look at himself without also seeing the arrangement.”

Origin

disputed origin

Memento mori is an order: remember that you must die. The tradition attaches it to the Roman triumph, where a slave was said to ride in the chariot behind the victorious general, holding the crown above his head and repeating a warning in his ear. Tertullian gives a version of the warning — look behind you, remember you are a man — though not this exact phrase, and how routine the practice was is not certain.

What is certain is the afterlife. Christian Europe built an entire visual vocabulary out of the instruction: skulls on tombs, hourglasses in portraits, a rotting corpse carved beneath the effigy of the same person in life. The Latin tag labelled the whole genre.

English uses memento mori for any object or moment that performs the same job — a diagnosis, an obituary of a contemporary, or a skull on a desk kept there entirely on purpose.

The Poets' Latinconnected storiesSee all Roman origin →

Horace, Virgil and Cicero, still quoted in the original.

Last updated August 3, 2026