Night vs Wight

Night

name
  • The goddess of the night in Heathenry. 

  • The 92nd sura (chapter) of the Qur'an. 

Wight

name
  • The Isle of Wight. 

  • A surname. 

  • A sea area comprising part of the English Channel, from the southern English coast down to Normandy 

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