1792  Steady in a river. A part where the bed widens, inclining to a pond, and there is no perceptible stream.
1842  I understand from a salmon-fisher, the only person inhabiting the neighbourhood, that a succession of "steadies," with occasional rapids, may be met with for twelve miles farther.
1912  The brooks and shallow steadies were now full up from the heavy rains, so we pole where we had to portage coming in.
1963  [Tourist Folder] The falls on County Cat are 3 and 8 miles from the forks and beyond the falls are a series of steadies which are reported to hold large numbers of salmon.