oneths

Noun

oneth (plural oneths)

1. (nonstandard) (in compounds with twenty-, thirty-, forty-, etc.) A fractional part of an integer ending in one
   • about twenty thirty-oneths in value of such sales being made as hereinafter mentioned to a syndicate of persons in the United Kingdom, about seven thirty-oneths to residents in the United States, and about four thirty-oneths to residents in other European countries and the colonies. —"Brooke & Co....
2. An ordinal value that is represented by an expression ending in 1 such as the (n + 1)th.
   • And then it was found that Dr. Whewell, or, as others asserted, one Dr. Donaldson, of Cambridge, had already responded to a similar challenge with an anticipatory variation of the idea : Youths who would senior wranglers be Must drink the juice distilled from tea, Must burn the midnight oil from...1892, William S. Walsh, Handy-Book of Literary Curiosities, page 970

See all 4 meanings of oneth