from The Century Dictionary and Cyclopedia
- To take stealthily; steal.
Sorry, no etymologies found.
*KCT turns surrept…serept…sneekily and frows anuvver pi rite a Maus and hits Maus* *SPLAT SPLATTER*
He bought a cannon for them, surrept -- pretending he was sending it to Latin America, and shipped it off to Kansas, together with muskets and all sorts of other things.