fave vs unfave

fave

adj

  • Favorite (US) or favourite (UK). 

verb

  • Favorite (US) or favourite (UK) 

noun

  • Favorite (US) or favourite (UK) 

unfave

verb

  • Synonym of unfavorite 

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