*lei/*leu and/or *pleu?

From: Lisa
Message: 32424
Date: 2004-04-30

What are your thoughts on the IE roots of Greek limne, Proto-Celtic
(?) *linnos, and Scottish lighe, among others listed in the Ceantar
links below.

I.e., which of the below two/three roots is the correct one, assuming
they are all from the same. Is the -n on the former two an IE suffix?

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*leu
http://www.bartleby.com/61/roots/IE283.html
(in the db here, it's *lei)
(also *lei on
http://www.geocities.com/indoeurop/project/phonetics/word27.html)

*pleu
http://www.bartleby.com/61/roots/IE415.html
(in the db here, it's the same)

http://www.ceantar.org/Dicts/MB2/mb24.html#lighe
http://www.ceantar.org/Dicts/MB2/mb24.html#linn
http://www.ceantar.org/Dicts/MB2/mb24.html#linne
http://www.ceantar.org/Dicts/MB2/mb24.html#l%c3%acon.2

http://www.bartleby.com/61/81/L0188100.html
This entry, linn, has no link to any IE root.

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Thanks. ;) I can't find any further info online, and again, I'm
nowhere near a library.