I don't think it's related to repertoire.
Here's where I first saw it:
"Incan diviners and augurs also had no previous clue to the impending invasion, despite their repoire with the spirit world."http://www.reall.org/newsletter/v07/n11/index.html
And here are the top hits from a Google search for "repoire":
"...quickly make new friends and develop a repoire with their teachers..."http://www.yale.edu/ynhti/curriculum/units/1996/4/96.04.10.x.html
"We had so many pleasant sensations between us, a fine repoire, yet I felt a bit crazed unknowing whether or not if this repoire is real, or a phantom of what I want to be real."http://www.nwlink.com/~phoenix/op11.htm
"I decided we had enough of a repoire to give out my phone number..."http://www.1st-family.com/finance/articles/mortgages/mortgage.story.html
"You feel a bondedness to them, a connectedness, you feel a sense of repoire."http://personalwebs.myriad.net/Roland/docs/lect2.htm
Something of a mixed bag, as you can see, but it seems clear that the sense is the same as "rapport."
Possibly useful sidenote: I didn't get any hits for "repiore."
Another interesting side note: repoire is number 41 the "Top 1000 Not Found" list at http://www.dict.org
, with the same number of attempted searches as "recieve."
, I rushed right over to post this after trying to find "repoire" in many
online dictionaries and doing several
extensive web searches. I'm supposed to be revising a paper, you see. . .