rullock

There being no proper place to scull in, I got an oar in the after rullock, and made out to scull a little, in that fashion.

Ned Myers or, a Life Before the Mast James Fenimore Cooper 1820

"Do you mean the chap in boots, who was for shoving his oar into another man's rullock, a bit ago, on the small matter of wharf, hereaway, in a range, over yonder house, bringing the north-east chimney to hear in a line, with the mizen-top-gallant-mast-head of that ship they are warping into the stream?"

The Red Rover James Fenimore Cooper 1820

Perhaps there is no manual labor at which men are so bungling and awkward, as in their first attempts to pull oar, even the experienced mariner, or boat man, breaking down in his efforts to figure with the celebrated rullock of the gondolier.

The Deerslayer James Fenimore Cooper 1820

We went ashore, and searched the canoe, where we found one of the rullock-ports of the cutter, and some shoes, one of which was known to belong to Mr Woodhouse, one of our midshipmen.

A General History and Collection of Voyages and Travels — Volume 15 Forming A Complete History Of The Origin And Progress Of Navigation, Discovery, And Commerce, By Sea And Land, From The Earliest Ages To The Present Time Robert Kerr 1784