derelict vs waif

derelict

noun
  • A homeless and/or jobless person; a person who is (perceived as) negligent in their personal affairs and hygiene. (This sense is a modern development of the preceding sense.) 

  • Property abandoned by its former owner, especially a ship abandoned at sea. 

adj
  • Negligent in performing a duty. 

  • Abandoned, forsaken; given up by the natural owner or guardian; (of a ship) abandoned at sea, dilapidated, neglected; (of a spacecraft) abandoned in outer space. 

  • Lost; adrift; hence, wanting; careless; neglectful; unfaithful. 

waif

noun
  • A person (especially a child) who is homeless and without means of support; also, a person excluded from society; an outcast. 

  • A plant introduced in a place outside its native range but is not persistently naturalized. 

  • A very thin person. 

  • Something found, especially if without an owner; something which comes along, as it were, by chance. 

  • A small flag used as a signal. 

  • Something (such as clouds or smoke) carried aloft by the wind. 

verb
  • To cast aside or reject, and thus make a waif. 

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