اختبأ
1.
It was, or became, hidden, or concealed: (Mgh:) he hid, or concealed, himself. (S.)
2.
It is also transitive: see 1.
3.
[Hence,]
اختبأ لَهُ خَبِيْيءًا
He expressed a thing enigmatically to him, and then asked him respecting it. (IDrd, K. [See also 3.])