Proto-English

The languages of Germanic peoples gave rise to the English language (the Angles, Saxons, Frisians, Jutes and possibly the Franks, who traded and fought with the Latin-speaking Roman Empire in the centuries-long process of the Germanic peoples' expansion into Western Europe during the Migration Period). Some Latin words for common objects entered the vocabulary of these Germanic peoples before their arrival in Britain and their subsequent formation of England.
The main source of information for the culture of the Germanic peoples (the ancestors of the English) in ancient times is Tacitus' Germania, written around 100 AD. While remaining conversant with Roman civilisation and its economy, including serving in the Roman military, they retained political independence. Some Germanic troops served in Britannia under the Romans. It is unlikely that Germanic settlement in Britain was intensified (except for Frisians) until the arrival of mercenaries in the 5th century as described by Gildas. As it was, the Angles, Saxons and Jutes arrived as Germanic pagans, independent of Roman control.
According to the Anglo-Saxon Chronicle, around the year 449, Vortigern, King of the Britons, invited the "Angle kin" (Angles allegedly led by the Germanic brothers Hengist and Horsa) to help him in conflicts with the Picts. In return, the Angles were granted lands in the southeast of England. Further aid was sought, and in response "came men of Ald Seaxum of Anglum of Iotum" (Saxons, Angles and Jutes). The Chronicle talks of a subsequent influx of settlers who eventually established seven kingdoms, known as the heptarchy. However, modern scholars view the figures of Hengist and Horsa as Euhemerized deities from Anglo-Saxon paganism, who ultimately stem from the religion of the Proto-Indo-Europeans. ..... TO BE CONTINUED