“Latin legatus meant a person sent with a commission — from legare, to send with authorization. Roman legates governed provinces, commanded armies, and conducted diplomacy. The word survives in both legal and papal vocabulary.”
Latin legare meant to send someone on a mission with authority — to delegate or commission. A legatus was the person so commissioned: a representative who acted in the name of the sender. The Roman Senate sent legati to foreign powers; Roman generals had legati commanding their legions; the emperor had legati governing his provinces. The legatus was a proxy who carried the sender's full authority.
In Roman army organization, the legatus legionis commanded a legion — roughly 5,000 soldiers. The rank was senatorial, a stepping-stone in the cursus honorum for young aristocrats learning military command before holding higher office. Julius Caesar's legati included Mark Antony and Labienus, figures who would outlast their commander in historical memory.
The Catholic Church adopted legatus for the Pope's personal representatives. A papal legate — legatus a latere (legate from the side, i.e., from the Pope's own side) — spoke with full papal authority in foreign courts. The medieval Church's legate system was central to its international diplomacy: Cardinal Wolsey, Henry VIII's powerful minister, held the position of papal legate.
Today legatus survives in 'legate' for a papal representative and in 'legacy' — what a legator leaves behind, what is bequeathed. The person who sends something forward on their behalf, and the thing sent or left — both live in the Roman commissioned messenger.
Related Words
Today
The legate carries someone else's authority into a situation where the authority-holder cannot be present. Every delegate, every envoy, every ambassador performs this function. The Latin legatus is the Roman word for representation itself.
A legacy is what you send forward after you can no longer be present. The connection between legatus and legacy is exact: both are authorized missions sent in your name, one during life and one after.
Explore more words