babbling vs piff

babbling

noun
  • Idle senseless talk; prattle. 

  • A confused murmur, as of a stream. 

  • a stage in child language acquisition, during which an infant appears to be experimenting with uttering sounds of language, but not yet producing any recognizable words 

  • sounds produced by infant during the babbling period 

piff

noun
  • Piffle; nonsense; rubbish. 

intj
  • An exclamation of annoyance or contempt; pish; pshaw. 

verb
  • To throw something vigorously. 

adj
  • good or attractive. 

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