Ув. ейск,

угол и узел конечно же связаны (но необязательно однокоренные) - также как angle и tangle - происходят из гнуть - отсюда же анк - крест в Египте и как справедливо заметил ув. Кузнецов - анкер - якорь.

Англия как угольниковы - чуть ли не офицальная версия ТИ и западников -

http://www.etymonline.com/index.php?search=angle&searchmode=none

Angle
member of a Teutonic tribe, O.E., from L. Angli "the Angles," lit. "people of Angul" (O.N. Öngull), a region in what is now Holstein, said to be so-called for its hook-like shape. People from the tribe there founded the kingdoms of Mercia, Northumbia, and East Anglia in 5c. Britain. Their name, rather than the Saxons or Jutes, may have become the common one for the whole group of Gmc. tribes because their dialect was the first committed to writing.