unendly vs unfaltering

unendly

adj
  • Having no end; infinite; endless; unending. 

adv
  • In an unendly or infinite manner; infinitely; unendingly. 

unfaltering

adj
  • Without faltering, continuous, steadfast. 

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