From the Latin ter, meaning thrice, or threefold. In standards terminology, ter refers to the third version, e.g.,V.27ter.
Webster's New World Telecom
Ter. Sentence Examples
The former are received of ter special instruction and profession of faith; the latter on presenting a certificate of church membership from the church which they have left.
They are flooded of ter rain, and in seasons of drought many of them, especially the tributaries of the Darling, become chains of ponds.
The movements of Manchester of ter Marston Moor were marked by great apathy.
He assumed the title of archchancellor of Gaul and Arles (or Burgundy), and in 1315 admitted the claim of the archbishop of Cologne to the highest place of ter the archbishop of Mainz among the spiritual princes of the empire.
William the Conqueror revived it immediately of ter his accession, as a convenient method of national taxation, and it was with the object of facilitating its collection that he ordered the compilation of Domesday Book.