Just a quick note on this puzzling Etruscan word, lautun, translated as 'family' by Larissa Bonfante. I notice that Douglas Kilday has beat me to the punch on the etymology of the word which I'm currently obsessed with at the moment. He has more or less made the same observations on the sci.lang forum that I also have: that it's a borrowed term, that it's not from Italic, and that it's nonetheless surely derived from a word based on the root *h₁leudʰ- from an Indo-European language.
So far, unless anyone can think of anything better, I'm convinced that Proto-Germanic is the likeliest the source. Proto-Germanic already contains the word *leudiz 'people' so it would be nice if I could find a word that looks like **leudōn lying around. So far, I haven't found anything and yet I can't help but think there's got to be a clue here somewhere.
 Bonfante/Bonfante, The Etruscan Language: An Introduction (2002), 2d ed., originally published in 1983, p.217 (see link).
 Douglas G. Kilday, sci.lang: "Some non-italic IE loanwords in Etruscan" (Dec 06 2002 10:46).