@jrmcanada,
Quote:Are there any words in English that, when spelled backwards, form their own antonym?
Yes, the mynortnocontronym ( the emaneke or urekeru, as some prefer to refer to it, for the sake of succinctness) abounds in the English language.
Consider if you will :
oy: an interjection expressing dismay, et al and
yo: an interjection expressing glee, et al
spans and snaps
spam and maps