junk vs wastage

junk

noun
  • Discarded or waste material; rubbish, trash, garbage. 

  • A Chinese sailing vessel. 

  • The genitalia, especially of a male. 

  • A collection of miscellaneous items of little value. 

  • Any narcotic drug, especially heroin. 

  • Salt beef. 

  • Pieces of old cable or cordage, used for making gaskets, mats, swabs, etc., and when picked to pieces, forming oakum for filling the seams of ships. 

  • Nonsense; gibberish. 

  • Material or resources of a kind lacking commercial value. 

verb
  • To throw away. 

  • To find something for very little money (meaning derived from the term junkshop) 

wastage

noun
  • Goods that are damaged, out of date, reduced, or generally unsaleable, which are destined to be thrown away and which are written off as a loss. 

  • The amount or proportion of something that is wasted or lost by deterioration or other natural process. 

  • The periodical turnover of personnel in an organisation by death, retirement or resignation, as perceived by those aspiring to promotion or appointment in the organisation. 

  • Anything lost by wear or waste. 

  • The act of abandoning animal carcasses or parts, usually illegal. 

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