from The Century Dictionary and Cyclopedia
- n. Nautical, a stout bar of wood extending along the sides of whaling-vessels inside the bulwarks. Its use is to secure water-casks and other heavy casks by lashings, hence the name.
Sorry, no etymologies found.
For the time, it was hauled aft out of the way, and secured to the lash-rail.
Then every one of the culprits was stripped, and secured to the lash-rail by the wrists; scourges were made of cotton fish-line, knotted at intervals, and secured to a stout handle; the harpooners were told off as executioners, and the flogging began.
The oil bought by the skipper on private venture was left on deck, secured to the lash-rail, for discharging at the Bluff, while our stock of water-casks were carefully overhauled and recoopered prior to being stowed in their places below.
"lash-rail" -- where the top of it towered up as high as the third ratline of the main-rigging.