tempus

The temple of the head — that flat, vulnerable area between the forehead and the ear — takes its name from Latin tempus (plural tempora), a word whose primary meaning is 'time' but which also referred to this specific region of the skull. The connection between time and the side of the head has puzzled etymologists for centuries, generating several competing theories. The most enduring explanation holds that the temple is where aging becomes visible first: the hair at the temples turns gray before it grays elsewhere, and the skin there is thin enough to show the pulse of blood beneath. The Romans, according to this reading, saw the temple as the place where time writes its signature on the body — the spot where mortality announces itself through silver hair and visible veins. The name is a memento mori embedded in anatomy.

An alternative explanation connects Latin tempus to the idea of a 'fitting' or 'right' place, from the same root that gives us 'temper' and 'temperament' — words concerned with proper proportion and mixture. In this reading, the temple is simply the 'appropriate spot,' the correct place on the skull where something important happens. Ancient physicians knew the temple as a critical region: a blow to the temple could kill, and the throbbing pulse visible beneath the thin skin there was read as a diagnostic sign. Greek physicians called the bones in this area the pterion, from pteron ('wing'), because the temporal bone resembles a wing in shape. But the Latin name prevailed in English, carrying with it the philosophical weight of tempus and all its associations with time, mortality, and human transience.

The word entered English through Old French temple in the twelfth century, and it has always existed in uncomfortable proximity to its homonym — 'temple' meaning a place of worship, from Latin templum. The two words are unrelated: templum derives from a root meaning 'to cut' or 'to mark off,' referring to the sacred precinct delineated by an augur's staff for the reading of omens. The anatomical temple from tempus and the architectural temple from templum merely collided in English by phonological accident. Yet the collision has produced centuries of poetic exploitation. Writers have drawn connections between the temple of the body and the temple of God, between the sacred precinct of the skull and the sacred precinct of worship, and the double meaning has given English a richer vocabulary of embodiment than it might otherwise possess.

Modern anatomy preserves the Latin root thoroughly: the temporal bone, the temporal lobe, the temporal artery, the temporalis muscle — all named for the temple region. The temporal lobe, which processes auditory information, memory, and language comprehension, sits directly beneath the temple of the skull, and damage to it produces some of the most dramatic neurological deficits: inability to form new memories, loss of language comprehension, altered personality. That the brain's memory center should lie beneath the 'time' bone is one of anatomy's more striking coincidences — or perhaps not a coincidence at all, if the Romans sensed something about this region's significance that modern neuroscience has merely confirmed. The temple remains the thinnest part of the skull, the most vulnerable point of the cranium, the place where time and fragility converge in a single word.