Possibly a nail used in setting up stoops or posts, but the one example noted occurs in a context of daubing, walling and roofing, so it may be for ‘stouring brod’.
In many early documents this was not a synonym for brook or beck but a reference to the current or main flow of a river, especially where it provided power by turning a water wheel.
Part of the harness for draught horses, found only in the East Riding. It may have been a local alternative for iron traces since the two terms do not occur together.
By the sixteenth century to ‘stub’, or more explicitly to stub up a tree, was to remove the stubs or stumps of those that had been felled, so that the land might be ploughed.