I'm reading a book on Confucius right now.
It touches on alotta Taoist concepts.
Tao or Dao (道, Pinyin: About this sound Dào (help·info) ) is a Chinese word meaning 'way', 'path', 'route', or sometimes more loosely, 'doctrine' or 'principle'. Within the context of traditional Chinese philosophy and religion, Tao is a metaphysical concept originating with Laozi that gave rise to a religion
The etymological linguistic origins of dao "way; path" depend upon its Old Chinese pronunciation, which scholars have tentatively reconstructed as *d'ôg, *dəgwx, *dəw, *luʔ, and *lûʔ.
Victor H. Mair proposes a Proto-Indo-European etymology for dao 道, supported by numerous cognates in Indo-European languages, and semantically similar Arabic and Hebrew words.
This links it to the Proto-Indo-European root drogh (to run along) and Indo-European dhorg (way, movement).
The most closely related English words are "track" and "trek", while "trail" and "tract" are derived from other cognate Indo-European roots.
D - well how about that.