peewee vs undergrown

peewee

noun
  • A kind of small marble in children's games. 

  • A pewee. 

  • A magpie-lark or mudlark (Grallina cyanoleuca). 

  • A player in a sports league for very young children. 

  • A short or small person; a small object. 

undergrown

adj
  • insufficiently grown; not having grown to a normal or suitable size. 

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