Is there a name for a "phantom" stroke handwritten by mistake? When handwriting the Chinese
休
it might be mistakenly written as
体
Afterwards, it has an additional &quot;phantom&quot; stroke which only exists because it's written incorrectly.  There's a number of &quot;phantom&quot; strokes when handwriting, e.g. the characters associated with:

miswriting 冖 as 宀,
miswriting 厂 as 广,
miswriting 斤 as 斥,
miswriting 礻 as 衤, and
miswriting 戈 as 戋.

I'm wondering if there is a name for this &quot;phantom&quot; stroke, either in English or Chinese, and either in linguistics or in informal usage.
Question: Is there a name for a &quot;phantom&quot; stroke handwritten by mistake?
It is called or 笔误 or 误笔 (handwriting mistake) or more colloquially &quot;写错笔划&quot; (write a wrong stroke)
写多笔划或是写少笔划都是笔误
俗语: &quot;误将冯京作马凉&quot; 就是典型的笔误引来的误会
Although 笔误 and 误笔 are interchangeable, there's also a term 口误 (slip of the tongue). Therefore, I prefer 笔误 over 误笔