Western non-interpolations
Western non-interpolations is a term coined by F. J. A. Hort for certain phrases that are absent in the Western text-type of New Testament manuscripts, but present in one of the two major other text-types. The Alexandrian text-type is generally terse or concise; the Western text-type is larger and paraphrased at places (using more words to convey a similar meaning); the Byzantine text-type is a combination of those two.
Source: Wikipedia — Western non-interpolations (CC BY-SA 4.0)