What is the term for when words are spelled forwards then backwards?

There isn't one specific term for spelling words forwards then backwards. Here's why and some possible ways to describe it:

* It's not a standard linguistic phenomenon: While palindromes are words that read the same forwards and backward, this isn't a recognized way of manipulating words.

* It's more of a playful or creative technique: You might describe it as:

* "Spelling a word forwards then backwards"

* "Writing a word in reverse order, then forwards"

* "Creating a word sequence with reversed spelling"

Examples:

* "Cat" becomes "tac" then "cat"

* "Hello" becomes "olleh" then "hello"

It's important to note that this isn't a common linguistic term, but more a descriptive phrase for a particular word manipulation technique.