Cacophony is harsh or discordant word sounds; the opposite of euphony, which is defined as "a harmonious succession of words having a pleasing sound". The word cacophony originates from the Greek word <span class="f-bold">kakophōnía</span> meaning <span class="f-bold">"ill sound"</span>. The term in poetry specifically refers to the use of words that combine sharp, harsh, hissing, or unmelodious sounds. Cacophony is one technique used by the famous poet and author Lewis Carroll. Lewis Carroll makes use of cacophony in his poem '"Jabberwocky" by using an unpleasant spoken sound created by clashing consonants. [FIELDSET=Jabberwocky by Lewis Carroll]'Twas brillig, and the slithy toves Did gyre and gimble in the wabe; All mimsy were the borogoves, And the mome raths outgrabe. "Beware the Jabberwock, my son! The jaws that bite, the claws that catch! Beware the Jubjub bird, and shun The frumious Bandersnatch!" He took his vorpal sword in hand: Long time the manxome foe he sought -- So rested he by the Tumtum tree. And stood awhile in thought. And as in uffish thought he stood, The Jabberwock, with eyes of flame, Came wiffling through the tulgey wood, And burbled as it came! One, two! One, two! And through and through The vorpal blade went snicker-snack! He left it dead, and with its head He went galumphing back. "And hast thou slain the Jabberwock? Come to my arms, my beamish boy! frabjous day! Callooh! Callay!" He chortled in his joy. 'Twas brillig, and the slithy toves Did gyre and gimble in the wabe; All mimsy were the borogoves, And the mome raths outgrabe.[/FIELDSET] Closely related to euphony and cacophony is the concept of consonance and dissonance.