favourable vs gainand

favourable

adj
  • Convenient or at a suitable time; opportune. 

  • Pleasing, encouraging or approving. 

  • Useful or helpful. 

  • Auspicious or lucky. 

noun
  • A favourable person 

gainand

adj
  • Appropriate; becoming; fit; suitable; convenient. 

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