E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A blow or cut with a sword, hence also estramaconner, to play at backsword. Sir Walter Scott uses the word in the sense of a feint or pretended cut. Hence Sir Jeffrey Hudson, the dwarf, says:
I tripped a hasty morris upon the dining, table, now offering my sword [to the Duke of Buckingham], and now recovering it, I made a sort of estramaçon at his nose, the dexterity of which consists in coming mightily near to the object without touching it.Peveril of the Peak, chap. xxxiv.