excursion vs sally

excursion

noun
  • A brief recreational trip; a journey out of the usual way. 

  • An occurrence where an aircraft runs off the end or side of a runway or taxiway, usually during takeoff, landing, or taxi. 

  • A deviation in pitch, for example in the syllables of enthusiastic speech. 

  • A wandering from the main subject: a digression. 

verb
  • To go on a recreational trip or excursion. 

sally

noun
  • An excursion or side trip. 

  • A kind of stonefly. 

  • A willow 

  • An object made from the above trees' wood 

  • A witty statement or quip, usually at the expense of one's interlocutor. 

  • A sudden rushing forth. 

  • Any tree that looks like a willow 

  • A tufted woollen part of a bellrope, used to provide grip when ringing a bell. 

  • A wren. 

  • A member of the Salvation Army. 

  • A sortie of troops from a besieged place against an enemy. 

verb
  • To set out on an excursion; venture; depart (often followed by "forth.") 

  • To make a sudden attack (e.g. on an enemy from a defended position). 

  • To venture off the beaten path. 

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