Indo-European Languages Forum

A good website to know what is being dicussed right now among American philologists is that of http://www.apaclassics.org/ . You can (still) read all the Abstracts of their Annual Meetings:

http://www.apaclassics.org/AnnualMeeting/

I found it looking for the Latin word populus (which e.g. gives English "popular" and "public"). I read the tiny abstract:

http://www.apaclassics.org/AnnualMeeting/06mtg/abstracts/Southern.pdf

After this paper, it is a loan from Sabellic, and comes from IE qeql.os (>pepelos->popolos), i.e., from the same source as Gk. kuklos (=Eng. cycle), Vedic cakram, O.Eng. hweol.