bot vs warble

bot

noun
  • The larva of a botfly, which infests the skin of various mammals, producing warbles, or the nasal passage of sheep, or the stomach of horses. 

  • A physical robot. 

  • A piece of software designed to perform a minor but repetitive task automatically or on command, especially when operating with the appearance of a (human) user profile or account. 

  • A computer-controlled character in a video game, especially a multiplayer one. 

  • A supremely unskilled player. 

verb
  • To ask for and be given something with the direct intention of exploiting the thing’s usefulness, almost exclusively with cigarettes. 

  • To bugger. 

  • To use a bot, or automated program. 

warble

noun
  • A lesion under the skin of cattle, caused by the larva of a bot fly of genus Hypoderma. 

  • In naval mine warfare, the process of varying the frequency of sound produced by a narrowband noisemaker to ensure that the frequency to which the mine will respond is covered. 

  • A small hard swelling on a horse's back, caused by the galling of the saddle. 

  • The sound of one who warbles; singing with trills or modulations. 

verb
  • To cause to quaver or vibrate. 

  • To modulate a tone's frequency. 

  • To be quavered or modulated; to be uttered melodiously. 

  • To sing like a bird, especially with trills. 

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