Considers Tennyson's poems, from the elegiac In Memoriam to the Arthurian Idylls of the King, in the context of Victorian interest in philology. How do words come to mean what they mean, and how can we hope to use them precisely when they are constantly changing? The urge to find a word's meaning through its etymology is an old and enduring one, gaining new momentum in the nineteenth century as advocates of the so-called "new philology" argued...