hypercorrection
Linguistics term for over-applying a perceived rule, producing a non-standard form (e.g., saying 'between you and I' in English).
Hypercorrections like 'ossharareru' are often cited as keigo mistakes.
言語学の授業で過剰修正の例をいくつか学んだ。
We learned several examples of hypercorrection in linguistics class.