gripe vs nag

gripe

verb
  • To annoy or bother. 

  • To suffer griping pains. 

  • To tend to come up into the wind, as a ship which, when sailing close-hauled, requires constant labour at the helm. 

  • To complain; to whine. 

noun
  • A wire rope, often used on davits and other life raft launching systems. 

  • A complaint, often a petty or trivial one. 

  • The compass or sharpness of a ship's stern under the water, having a tendency to make her keep a good wind. 

  • The piece of timber that terminates the keel at the fore end; the forefoot. 

  • Pinching and spasmodic pain in the intestines. 

  • An assemblage of ropes, dead-eyes, and hocks, fastened to ringbolts in the deck, to secure the boats when hoisted. 

nag

verb
  • To repeatedly remind or complain to (someone) in an annoying way, often about insignificant or unnecessary matters. 

  • To bother with persistent thoughts or memories. 

  • Anyone would think that I nagged at you, Amanda! (From Amanda! by Robin Klein) 

  • a nagging pain in his left knee 

  • The notion that he forgot something nagged him the rest of the day. 

  • To bother or disturb persistently in any way. 

noun
  • Someone or something that nags. 

  • A persistent, bothersome thought or worry. 

  • An old, useless horse. 

  • A repeated complaint or reminder. 

  • A small horse; a pony. 

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