A posteriori

ANGLO-FRISIAN: The sub-branch of West Germanic including English and Frisian.

ANGLO-NORMAN: The dialect of Norman French that developed in England after William the First conquered England. Scholars abbreviate this as AN. See also Battle of Hastings.

ANGLO-SAXON: (1) Historically, the term refers to a group of Teutonic tribes who invaded England in the fifth and sixth centuries following the departure of Roman legions in 410 CE. These tribes, the Angles, the Saxons, and the Jutes, came from the northern parts of Europe and gave their name (Angle-Land) to England, driving the native Celtic peoples into the farthest western and northern regions of Britain. We can also refer to the time-period of 410 CE up until about 1066 CE as the "Anglo-Saxon" historical period in Britain. In linguistics, the term Anglo-Saxon is also used to refer to Old English, the language spoken by these tribes and the precursor of Middle English and Modern English. See Old English. (2) In colloquial usage, the term Anglo-Saxon is often used to distinguish people of "English" ethnicity in Great Britain, Canada, and the United States--hence acronyms like "WASP" (White Anglo-Saxon Protestant).