The American Heritage® Dictionary of the English Language, 4th Edition
n. A drug mentioned in the Odyssey as a remedy for grief.
n. Something that induces forgetfulness of sorrow or eases pain.
the GNU version of the Collaborative International Dictionary of English
n. A drug used by the ancients to give relief from pain and sorrow; -- by some supposed to have been opium or hasheesh. Hence, anything soothing and comforting.
The Century Dictionary and Cyclopedia
n. Same as nepenthes. 1.
Word Usage
"Egyptians they found something they called nepenthe, and the Theban women knew how to compound it."