Over at Futility Closet:
rua
torta
lua
morta
tua
porta.
No solution occurs to me, but in general rendering in English Portuguese meaning and mode should surely be easier than doing so in Spanish (that is where García Yebra struggled), because of English's far greater lexical resources and linguistic freedoms. Perhaps the Spanglish revolution will change all that.
The RAE apparently now accepts setiembre and otubre.