1382; O.E. had
casere, which would have yielded modern
*coser, but it was replaced in M.E. by
keiser, from Norse or Low Ger., and later in M.E. by the Fr. or L. form of the name.
Cæsar was used as a title of emperors down to Hadrian (138 C.E.), and also is the root of Ger.
Kaiser and Rus.
tsar (see
czar). He competes as progenitor of words for "king" with Charlemagne (L.
Carolus), as in Lithuanian
karalius, Polish
krol, Hungarian
kiraly. In U.S. slang c.1900, a sheriff was
Great Seizer. The
Caesar salad is named not for the emperor, but for
Cesar Cardini, Tijuana, Mexico, restaurant owner, who is said to have served the first one c.1924.