side by side vs sidewards

side by side

adv

  • Beside or alongside one another; close to one another and abreast. 

  • In peace. 

  • With a common purpose. 

sidewards

adv

  • Toward a side. 

adj

  • Toward a side. 

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