Englsih lannguage as we know it today takes 50% from old French and latin and the other 50% from old germanic languages of the Anglo-saxons and Jutes from Northern Germany and Denmark, then from the Danish and Norwegian vikings whose language was close to the one of the Anglosaxons anyway (still know, Scandinavic languages are incredibly close to English). French/latin words came mainly with the Normand conquest of England in 1066. You cannot really say the language spoken in England before that was "English" (even old, the vocabulary would be at least less than a third of the present language, if we consider Latin imports and words that were invented later such as tv, microwaves, etc).