What is the long word for typo?

There isn't really a "long word" for typo in the way that there are for other words like "automobile" for "car." However, here are some more formal or specific terms you could use:

* Errata: This refers to a list of errors in a written work, which could include typos.

* Misprint: This is a more general term for any error in printing, which could include typos.

* Transcription error: This specifically refers to an error made when copying text, which could include typos.

* Clerical error: This is a general term for an error made in paperwork or data entry, which could include typos.

The best choice depends on the specific context and the kind of typo you're referring to.