Hello, Everyone,
I thank you all for your contributions to the solution of this archaic term. I had originally thought the word was "Lugg" but the formation of the "L" has a very distinctive backwards curl at the top of the letter. This was something I had not seen in an "L" and I've seen a lot of "L"s over the years. So, I went with "Qugg". But the link posted by Maddys52 shows one "L" that has a backwards curl at the top of the letter. Aha! The word is "Lugg".
Having Googled and checked all of the references supplied for the word "Lug", I was more confused as there seems to be no definitive settled measurement. But, with the reference provided by Radstockjeff I found the mentioned dictionary on archive.org hoping that it would provide a source reference for the coppice wood definition. But, the dictionary provides no more enlightenment than what was provided by radstockjeff.
So, when all is said and done, because the Lugg reference in the Will refers to the measure being made in the Testator's wood grove I have to go with a measurement of forty-nine square yards.
Thank you, again, everyone. This has been an interesting learning experience. I appreciate all of your contributions and your time taken in reading and replying to my query.