reckon without vs undersee

reckon without

verb
  • To ignore; to fail to consider. 

  • Used other than figuratively or idiomatically: see reckon, without. 

undersee

verb
  • To neglect; fail to see properly or adequately; turn a blind eye to; ignore. 

  • To see or look under or below; see below the surface of. 

  • To look intently into; examine; inspect. 

How often have the words reckon without and undersee occurred in a corpus of books? (source: Google Ngram Viewer )