descorreizar

An extremely rare, technical verb built on correa (strap/belt) — going by its form it would mean to remove straps or strapping from something (machinery, harness gear), but it isn't attested in the RAE or other major Spanish dictionaries, and real usage examples are essentially nonexistent.

• El manual menciona descorreizar la pieza antes de limpiarla. — The manual mentions removing the strapping from the part before cleaning it.
• Es un término tan raro que pocos hablantes lo reconocerían. — It's such a rare term that few speakers would recognize it.
• No aparece en los diccionarios de referencia habituales. — It doesn't appear in the usual reference dictionaries.

This is one of the rarest entries in the whole verb list — there's no genuine common mistake to flag here, since almost no native speaker uses or would recognize this verb in practice.