bot vs droid

bot

noun
  • A physical robot. 

  • 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 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. 

droid

noun
  • A robot, especially one made with some physical resemblance to a human (an android). 

  • A person having the qualities of an android; one with few or no emotions or little personality, or who acts in an unthinking manner; a robot. 

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