Moana vs Tarn

Moana

name
  • A small town on the West Coast, New Zealand, on the shore of Lake Brunner (known as Moana in Maori). 

  • A unisex given name from Polynesian 

  • A unisex given name from Hawaiian 

  • A coastal suburb of Nelson, New Zealand. 

Tarn

name
  • A river in southwestern France. 

  • A department of Occitanie, France; previously in Midi-Pyrénées (INSEE code 81). 

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