I had a very brief discussion with someone about the etymology of a few terms in the Book of Abraham which made me remember the talk by John Tvedtnes from the 2005 FAIR Conference, "Authentic Ancient Names in the Book of Abraham." (pdf of transcript). While I think Tvedtnes stretches at times (e.g., Joseph Smith could have known kokob and kokobeam from studying Hebrew under Joshua Seixas, so such cannot really be used to support the text's authenticity), he does show a number of "hits" Joseph Smith could not have faked, supporting the antiquity of the Book of Abraham. Here is the video: