To Lurk, To Lie Dormant
intransitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means conceal, so if you conceal yourself and walk around you are going to lurk or you are going to lie dormant.
ひそむ
He so (ひそ) hidden. Where you at?
ワニカニはあなたの部屋の片隅に潜んでいるかもしれませんよ。
The crabigator might be lurking in the corners of your room.