oneth vs prominent

oneth

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

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

noun
  • A fractional part of an integer ending in one 

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

prominent

adj
  • standing out, or projecting; jutting; protuberant 

  • likely to attract attention from its size or position; conspicuous 

  • eminent; distinguished above others 

noun
  • Any of various moths having a conspicuous projection on the inner margin of the wings. 

  • In Nazi concentration camps, an inmate entrusted with minor supervisory duties and rewarded with perquisites. 

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