Webster's 1913 Dictionary
SARUM USE
SARUM USE Sa "rum use `. (Ch. of Eng. )
Defn: A liturgy, or use, put forth about 1 87 by St. Osmund, bishop of Sarum, based on Anglo-Saxon and Norman customs.
New American Oxford Dictionary
Sarum
Sar um |ˈse (ə )rəm ˈsɛrəm | an old name for Salisbury, still used as the name of its diocese.
Oxford Dictionary
Sarum
Sarum |ˈsɛːrəm | an old name for Salisbury, still used as the name of its diocese. See also Old Sarum. • [ as modifier ] denoting the order of divine service used before the Reformation in the diocese of Salisbury and, by the 15th century, in most of England, Wales, and Ireland: Sarum Use. ORIGIN from medieval Latin, perhaps from an abbreviated form of Latin Sarisburia ‘Salisbury ’.
The Wordsmith Dictionary