Error messages for WebAssembly, especially around parsing, use "th" ordinals a lot even for 1th 2th 3th. This applies to the error messages as well as the tests for them. We could move to using proper English "st" "nd" "rd" "th", *or* (and wait for it!!!) we could use Unicode's masculine ordinal indicator "ΒΊ" which IMHO is SO MUCH BETTER: it's regular, and it's neat!