The builder of vessels meant to leave the shore — the craft that makes a thing seaworthy before it ever meets water.
Old English scip (ship) joined to wryhta (a maker, a worker), from wyrcan (to work); the builder who makes a vessel seaworthy before it ever meets water.
The builder who makes a vessel seaworthy before it ever meets water — the craft of readiness rather than the craft of the voyage.