charade

a piece of paper
which appreared to be blank
But on which we see
writing had faded
"my first is of the
Possessive of those
given to possession.
and my last, the finalty
of that proposition.
in entirety i give
that which 3 worlds does live.
Ungainly in the two;
In-all, long legged beauty,
much as you."
Upon the paper which has come to fade
we strain to see
An ancient charade
Can you decipher me?