Noah Webster
Conceal
CONCEAL, verb transitive [Latin To withhold from sight, ; G., To conceal and to heal; the primary sense is to strain, hold, stop, restrain, make fast or strong, all from the same root as the Shemitic.]
1. To keep close or secret; to forbear to disclose; to withhold from utterance or declaration; as, to conceal ones thoughts or opinions.
I have not concealed the words of the Holy One. Job 6:10.
2. To hide; to withdraw from observation; to cover or keep from sight.
What profit is it if we slay our brother and conceal his blood? Genesis 37:26.
A party of men concealed themselves behind a wall. A mask conceals the face.