leftish vs onward

leftish

adj

  • Leaning towards the political left. 

onward

adj

  • Moving forward. 

  • Advanced in a forward direction or toward an end. 

verb

  • To keep going; to progress or persevere. 

adv

  • In a forward direction. 

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