Oak
In Proto Indo European, the word for “oak tree” was derwo or dreu, but in the daughter language Proto Germanic derwo/dreu was replaced by aiks. Where aiks came from is a mystery, but it was very possibly borrowed into Proto Germanic from some unknown neighboring non-Proto Indo European language. Proto Germanic has a large number of words not derived from Proto Indo European, leading some researchers to speculate that the early Germanic tribes had extensive contact with an ancient non-Indo European culture in northern Europe, now lost to history.
Why aiks replaced derwo/dreu is a unknown; but given the holiness of the oak tree for the peoples of Europe in ancient times, perhaps aiks was brought in as a euphemism for derwo/dreu. Later, derwo/dreu descended into English as tree, while aiks became ac in Old English and oak in Modern English.
The sound of the word oak suggests a well-rounded, whole, earthy energy, with no known source or beginning, which is wrapped up and contained (perhaps even concealed).
September 28th, 2007 at 11:05 am
[...] Tree is from Proto Indo European deru or doru, which meant “oak tree”. The oak tree was so central and sacred to the ancient Indo Europeans that in many of the daughter languages, including English, the word for “oak” was simply extended to mean all trees everywhere. It’s also the root of true, truce, betroth, truth, trust, dryad, rhododendron, and of course druid. The oak tree itself may have been too holy to have its name spoken; in any case, its name oak has an unknown origin — see oak. [...]