fatha vs tonic

fatha

noun
  • The vowel designated by this mark. 

  • father 

  • In Arabic script, the vowel point for a, appearing as a diagonal line placed above a letter ( ـَ ) and designating a short a /a/. If the Arabic letters ا (أَلِف (ʔalif)) or ى (أَلِف مَقْصُورَة (ʔalif maqṣūra)) immediately follow, it indicates a long ā /aː/. 

tonic

noun
  • A tonic element or letter; a vowel or a diphthong. 

  • A substance with medicinal properties intended to restore or invigorate. 

  • Someone or something that revitalises or reinvigorates. 

  • The first note of a diatonic scale; the keynote. 

  • The triad built on the tonic note. 

  • Tonic water. 

  • Any of various carbonated, non-alcoholic beverages; soda pop. 

adj
  • Of or relating to tones or sounds; specifically (phonetics, dated) being or relating to a speech sound made with tone unmixed and undimmed by obstruction, i.e. a vowel or diphthong. 

  • Pertaining to tension, especially of muscles. 

  • In a state of continuous unremitting action. 

  • Restorative, curative or invigorating. 

  • Pertaining to or based upon the first note of a diatonic scale. 

  • Pertaining to the accent or stress in a word or in speech. 

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