extend vs rise

extend

verb
  • To increase in extent. 

  • To reenlist for a further period. 

  • To increase in quantity by weakening or adulterating additions. 

  • To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ of extent. 

  • To straighten (a limb). 

  • Of a class: to be an extension or subtype of, or to be based on, a prototype or a more abstract class. 

  • To cause to increase in extent. 

  • To cause to last for a longer period of time. 

  • To possess a certain extent; to cover an amount of space. 

  • To bestow; to offer; to impart; to apply. 

rise

verb
  • Of a quantity, price, etc., to increase. 

  • To become active, effective or operational, especially in response to an external or internal stimulus. 

  • To leave one's bed; to get up. 

  • To attain a higher status. 

  • To terminate an official sitting; to adjourn. 

  • To have its source (in a particular place). 

  • To develop. 

  • To become erect; to assume an upright position. 

  • To become more and more dignified or forcible; to increase in interest or power; said of style, thought, or discourse. 

  • To ascend on a musical scale; to take a higher pitch. 

  • To be resurrected. 

  • To swell or puff up in the process of fermentation; to become light. 

  • To slope upward. 

  • To become perceptible to the senses, other than sight. 

  • To come to mind; to be suggested; to occur. 

  • To go up; to ascend; to climb. 

  • To appear to move upwards from behind the horizon of a planet as a result of the planet's rotation. 

  • To come; to offer itself. 

  • To move upwards. 

  • To grow upward; to attain a certain height. 

  • To become agitated, opposed, or hostile; to go to war; to take up arms; to rebel. 

  • To cause to go up or ascend. 

noun
  • An area of terrain that tends upward away from the viewer, such that it conceals the region behind it; a slope. 

  • The amount of material extending from waist to crotch in a pair of trousers or shorts. 

  • A small hill; used chiefly in place names. 

  • A very noticeable visible or audible reaction of a person or group. 

  • The process of or an action or instance of coming to prominence. 

  • An increase in a quantity, price, etc. 

  • The process of or an action or instance of moving upwards or becoming greater. 

  • The height of an arch or a step. 

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