incipient vs naissant

incipient

adj
  • In an initial stage; beginning, starting, coming into existence. 

noun
  • A verb tense of the Hebrew language. 

naissant

adj
  • Having only its forepart shown, especially if because it is issuing from an ordinary or division of the field. 

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