"Sine nomine" is a Latin

Latin

Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 expression, meaning "without a name". It is most commonly used in the contexts of publishing and bibliographical

Bibliography

Bibliography , as a practice, is the academic study of books as physical, cultural objects; in this sense, it is also known as bibliology...

 listings such as library catalog

Library catalog

A library catalog is a register of all bibliographic items found in a library or group of libraries, such as a network of libraries at several locations...

s, to signify that the publisher (or distributor, etc.) of a listed work is unknown, or not printed or specified on the work. Compare with sine loco (s.l.), "without a place", used where the place of publication of a work is unknown or unspecified. While it may sometimes be used to disclose unknown authorship, this is more commonly indicated as anon.

Anonymus

Anonymus is the Latin spelling of anonymous. This Latin spelling, however, is traditionally used by scholars in the humanities to refer to any ancient writer whose name is not known, or to a manuscript of their work...

or similar.

See also

• For All the Saints
  For all the Saints
  "For All the Saints" was written as a processional hymn by the Anglican Bishop William Walsham How. The hymn was first printed in Hymns for Saint's Days, and Other Hymns, by Earl Nelson, 1864.-Tune:...
  
  
• Missa Sine nomine
  Missa Sine nomine
  A Missa sine nomine, literally a "Mass without a name", is a musical setting of the Ordinary of the Mass, usually from the Renaissance, which uses no pre-existing musical source material, as was normally the case in mass composition...
  
  , literally, a Mass without a name