in common vs singly

in common

prep
  • Shared with one or more others. 

  • Held in joint possession. 

  • Possessing similar or identical qualities. 

singly

adv
  • Honestly; sincerely; simply. 

  • Individually; particularly; severally. 

  • Without partners, companions, or associates; single-handed. 

  • In a single or unaccompanied manner; without a companion. 

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