granny knot

American  

Or granny's knot

noun

1. an incorrect version of a square knot in which the bights cross each other in the wrong direction next to the end, so as to produce a knot that is insecure.

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granny knot British  

noun

1. a reef knot with the ends crossed the wrong way, making it liable to slip or jam

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Etymology

Origin of granny knot

First recorded in 1850–55; so called in contempt

Example Sentences

If the knot tends to lie vertically along the shoe, it's a weaker granny knot, whereas if the knot is horizontal, it's the stronger square knot.

From Salon • Sep. 4, 2021

For example, in a standard granny knot, rope strands slide along each other in opposite directions as the knot is tightened, generating friction that increases the knot's strength.

From Salon • Sep. 4, 2021

Although he admitted to still using the granny knot himself through habit.

From The Guardian • Apr. 11, 2017

Growing up, my only exposure to military culture was my dad, who served in the Navy for two years, trying to teach me the difference between a square knot and a granny knot.

From New York Times • Oct. 16, 2012

And that's why I found myself fumbling one simple granny knot.

From "Black Swan Green" by David Mitchell