Grain vs Lade

Grain

name

  • A village on the Isle of Grain, Medway borough, Kent, England (OS grid ref TQ8876). 

  • A surname. 

Lade

name

  • A coastal hamlet in Lydd parish, Folkestone and Hythe district, Kent, England (OS grid ref TR0820). 

  • A surname. 

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