from the GNU version of the Collaborative International Dictionary of English
- adj. Relating to the lake of Serbonis in Egypt, which by reason of the sand blowing into it had a deceptive appearance of being solid land, but was a bog.
from The Century Dictionary and Cyclopedia
- Noting a large bog or lake in Egypt, lying between the Delta and the Isthmus of Suez.
Sorry, no etymologies found.