Dr. Dave,
In The American Heritage Dictionary (hard copy, 8'th printing), one of the definitions of "English" when used as a noun is:
7. Often small e. The spin given to a ball by striking it on one side or releasing it with a sharp twist.
They also include a definition as a transitive verb (Englished, -lishing, -lishes):
3. Often small e. To cause (a ball) to spin, as in billiards or bowling.
Maybe one way to decide whether to honor tradition or not, is to weigh the pros and cons. While there isn't a heck of a lot going for either one, "english" may have a slight edge.
What are the advantages of retaining "English"? Does it make the written language more appealing or readable? Does it give the word a more distinctive meaning? Does it conjure up warm associations with ancient traditions and ceremonies?
What about "english"? As has been mentioned, this at least is more in accord with its usage as a common noun. In addition, it's the only one listed in the aforementioned dictionary that is acknowledged as sometimes beginning with a small e. Every other definition begins with a capital; thus, it has a unique meaning. Finally, it's easier to type and saves wear and tear on the shift key (as well as helping to keep one's fingers away from that damnable Caps Lock!)
Jim