A bit confused with と in ひょっこりと


> 彼女は今になって到着し、廊下から **ひょっこりと** 顔を出す。

This と looks like it comes from the word behind, so ひょっこり but when looking at
a dictionary I found that ひょっこり is not an adjective which can take と. Why is と
placed after this adverb, then?

For instance, it is specified that ゆっくり is an adverb which can take the と
particle, however, there is no mention of that regarding ひょっこり.




ひょっこり definitely belongs to the "adverb taking the 'to' particle" category,
which is described in the following questions:

  * [What role does と play in this sentence?](https://japanese.stackexchange.com/q/36764/5010)
  * [What is the purpose of adding と?](https://japanese.stackexchange.com/q/24943/5010)
  * [What does adding と after an adverb do?](https://japanese.stackexchange.com/q/42163/5010)
  * [How is と used here?](https://japanese.stackexchange.com/q/55234/5010)

I don't know why jisho doesn't mention it can (optionally) take と. It may be
simply because this word is relatively uncommon.




ひょっこり definitely belongs to the "adverb taking the 'to' particle" category,
which is described in the following questions:

  * [What role does と play in this sentence?](https://japanese.stackexchange.com/q/36764/5010)
  * [What is the purpose of adding と?](https://japanese.stackexchange.com/q/24943/5010)
  * [What does adding と after an adverb do?](https://japanese.stackexchange.com/q/42163/5010)
  * [How is と used here?](https://japanese.stackexchange.com/q/55234/5010)

I don't know why jisho doesn't mention it can (optionally) take と. It may be
simply because this word is relatively uncommon.

