Gordian vs entangled

Gordian

adj
  • Of the Gordian knot. 

  • Twisted; convoluted; tied as a knot. 

  • Of or pertaining to Gordium (now Yassihüyük in Turkey), capital of Phrygia. 

  • Of or pertaining to Gordius, king of Phrygia 

name
  • Gordianus, name of three Roman emperors. 

entangled

adj
  • (of two quantum states) correlated, even though physically separated; (referring to a state of a composite system) not separable 

  • tangled or twisted together 

  • confused or complicated 

How often have the words Gordian and entangled occurred in a corpus of books? (source: Google Ngram Viewer )