text vs underword

text

noun
  • A writing consisting of multiple glyphs, characters, symbols or sentences. 

  • A verse or passage of Scripture, especially one chosen as the subject of a sermon, or in proof of a doctrine. 

  • A style of writing in large characters; also, a kind of type used in printing. 

  • A brief written message transmitted between mobile phones. 

  • Data which can be interpreted as human-readable text. 

  • Anything chosen as the subject of an argument, literary composition, etc. 

  • A book, tome or other set of writings. 

verb
  • To send a text message to; i.e. to transmit text using the Short Message Service (SMS), or a similar service, between communications devices, particularly mobile phones. 

  • To send and receive text messages. 

underword

noun
  • A word placed below another, either literally or metaphorically: a subtext; an inadequate or subordinate term or description; a secret word or phrase; a watchword 

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