Groop

The groop is one foot six inches wide, six and one-half inches deep at one end … to carry off the urine into a reservoir under the Cowhouse, …

Cleaning the byre involved barrowing out the contents of the groop, sluicing it down and rebedding it with clean straw.

Revival of Fine Literature — Swiss groop of Poets ...

… and laid his Hickory and hat down afore him, and all our folks began to nock noses in little groops here and there;

Delete one point x and consider as new groops the point sets B\{x} where B is any block of D containing x.

A groop divisible design on v points with groop size g and block size k is called a t-GD[k,g,;v] if every subset of t distinct points that contains no two points from the same groop is contained in exactly one block.

Grooped around the fires on which they were preparing their provisions, …