XXIII. OF THE LETTER W.
W, when reckoned a consonant, (as it usually is when uttered with a vowel that follows it,) has the sound heard at the beginning of wine, win, woman, woody; being a sound less vocal than that of oo, and depending more upon the lips.
W before h, is usually pronounced as if it followed the h; as in what, when, where, while: but, in who, whose, whom, whole, whoop, and words formed from these, it is silent. Before r, in the same syllable, it is also silent; as in wrath, wrench, wrong. So in a few other cases; as in sword, answer, two.
W is never used alone as a vowel; except in some Welsh or foreign names, in which it is equivalent to oo; as in "Cwm Cothy," the name of a mountain in Wales; "Wkra" the name of a small river in Poland.—See Lockhart's Napoleon, Vol. ii, p. 15. In a diphthong, when heard, it has the power of u in bull, or nearly that of oo; as in new, now, brow, frown. Aw and ow are frequently improper diphthongs, the w being silent, the a broad, and the o long; as in law, flaw,—tow, snow. W, when sounded before vowels, being reckoned a consonant, we have no diphthongs or triphthongs beginning with this letter.