maximal vs oneth

maximal

noun
  • Said of a set of well-formed formulas: that it is as large as it can be without being inconsistent; i.e. that for any well-formed formula φ, the set contains either φ or ~φ. 

  • The element of a set with the greatest magnitude. 

  • Said of an ideal of a ring or a filter of a lattice: that it is as large as it can be without being trivial (improper). 

adj
  • Largest, greatest (in magnitude), highest, most. 

oneth

noun
  • An ordinal value that is represented by an expression ending in 1 such as the (n + 1)th. 

  • A fractional part of an integer ending in one 

adj
  • 'first', or other ordinal derivatives of 'one', such as hundred-and-oneth or minus-oneth 

  • Used at the end of algebraic expressions indicating ordinal position that end in 1, such as (k+1)ᵗʰ 

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