lyric vs vowel

lyric

noun
  • The words of a song or other vocal music. 

  • A lyric poem. 

adj
  • Of or relating to the lyre (or sometimes the harp) 

  • Of or relating to a writer of such poetry 

  • Having a light singing voice of modest range 

  • Of or relating to musical drama and opera 

  • lyrical 

  • Of, or relating to a type of poetry (such as a sonnet or ode) that expresses subjective thoughts and feelings, often in a songlike style 

  • melodious 

vowel

noun
  • A sound produced by the vocal cords with relatively little restriction of the oral cavity, forming the prominent sound of a syllable. 

  • A letter representing the sound of vowel; in English, the vowels are a, e, i, o, u, and y. 

verb
  • To add vowel points to a consonantal script (e.g. niqqud in Hebrew or harakat in Arabic). 

How often have the words lyric and vowel occurred in a corpus of books? (source: Google Ngram Viewer )