hieroglyphic vs manual

hieroglyphic

noun
  • Undecipherable handwriting or secret symbol. 

  • Any symbol used in this system; a hieroglyph. 

  • A writing system of ancient Egypt, Minoans, Maya and other civilizations, using pictorial symbols to represent individual sounds as a rebus 

adj
  • difficult to decipher 

  • of, relating to, or written with this system of symbols 

manual

noun
  • A manual typewriter (as contrasted with an electronic one). 

  • A vehicle with a manual transmission. 

  • A similar maneuver on a skateboard, lifting the front or back wheels while keeping the tail or nose of the board from touching the ground. 

  • A keyboard for the hands on a harpsichord, organ, or other musical instrument. 

  • A drill in the use of weapons, etc. 

  • Manual control or operation. 

  • A handbook. 

  • An old office-book like the modern Roman Catholic ritual. 

  • Manual measurement of the blood pressure, done with a manual sphygmomanometer. 

  • A bicycle technique whereby the front wheel is held aloft by the rider, without the use of pedal force. 

  • A manual transmission; a gearbox, especially of a motorized vehicle, shifted by the operator. 

  • A booklet that instructs on the usage of a particular machine or product. 

adj
  • Performed with the hands. 

  • Operated by means of the hands. 

  • Performed by a human rather than a machine. 

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