Ordinal numbers are traditionally considered to begin at 1: i.e., 1st, 2nd, 3rd, etc. Yet, in the past 100 years, the word “zeroth” (0th) has begun to be used.
Negative integers seem even more inappropriate as ordinal numbers, but there still are cases where we would like to form things like "minus sixth floor". How is it with -1, -2 and -3?
- minus first, minus second, minus third
- minus oneth, minus twoth, minus threeth
or maybe a mix of those? "Minus oneth" doesn't sound too awkward to me, might even sound better to some.