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

(in compounds with twenty-, thirty-, forty-, etc.) A fractional part of an integer ending in one

plural of oneth

(nonstandard) hundred-first, hundred-and-first

(nonstandard) eleventh

(nonstandard) forty-first

(nonstandard) eighty-first

(nonstandard) seventy-first

A fractional part of seventy-one

(nonstandard) thirty-first