T, the twentieth letter of the English alphabet, was by the Greeks
absurdly called _tau_. In the alphabet whence ours comes it had the
form of the rude corkscrew of the period, and when it stood alone
(which was more than the Phoenicians could always do) signified
_Tallegal_, translated by the learned Dr. Brownrigg, "tanglefoot."
-- Ambrose Bierce, "The Devil's Dictionary"