Meaning of 'Fut'

[©onno® B.]

Let's see what 'fut' means.

"Fut - [foot] (int.) an exclamation of contempt or derision. A word used to swear or surse, possibly short for "God's foot", though that is not certain."

--The Dictionary of Shakespeare Words, glossary-- last page of F section

1 [http://books.google.com/books?id=Ro4t-J2G_RwC&pg=PT233&lpg=PT233&dq=shakespeare+fut+meaning&source=bl&ots=rrewNR5f5g&sig=mYVQqhj5bCL9g6qvJY_wxy1IbJg&hl=en&sa=X&ei=cIbIUd69A4SG9QSytoGQAQ&ved=0CEkQ6AEwBA]

"Fut ... [is a] common [form] of the oath Foot, God's Foot..."

--Shakespeare-quatro Fascimilies: King Lear Volume 1, footnote on page xv

1 [http://books.google.com/books?id=yHk4AAAAYAAJ&pg=PR15&lpg=PR15&dq=shakespeare+fut+meaning&source=bl&ots=o_2fR7ipRk&sig=sCjUGqgIZ-yOe0DHgl4q2oCK5P8&hl=en&sa=X&ei=cIbIUd69A4SG9QSytoGQAQ&ved=0CE0Q6AEwBQ#v=onepage&q=shakespeare%20fut%20meaning&f=false]

My Foot -- euphemism for 'my ass', meaning something is nonsense.

1 [http://en.wiktionary.org/wiki/Talk:my_foot]

2 [http://linguaphiles.livejournal.com/5462751.html]

So, 'fut' is an early form of the word 'foot'. This could mean that it means 'my foot' which is a phrase used to say that something is nonsense. 

"...and my nativity was under Ursa Major, so that it follows, I am rough and lecherous. Fut, I should have been that I am..."

Does that make sense for what is said?