ostensible vs putative

ostensible

adj
  • Appearing as such; being such in appearance; professed, supposed (rather than demonstrably true or real). 

  • Apparent, evident; meant for open display. 

putative

adj
  • Commonly believed or deemed to be the case; accepted by supposition rather than as a result of proof. 

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