Since the Greek spreadsheet was so unwieldy, but had little data, I've scrapped it. I'm starting on Latin, now, with this frequency list. Etymologies are pulled from de Vaan, 2008 (the Leiden Etymological Dictionary series.) Greek etymologies, when I get to them, will probably end up being pulled from a combination of Beekes and Chantraine.

This time around, can we please write Greek in its native alphabet? Maybe write the Slavic languages in Cyrillic, too (edit: probably not OCS, it's always transliterated...). It's silly not to transliterate Hittite or Sanskrit, but any IEist worth their salt will be able to sound out Greek and Cyrillic. (I'm already breaking my vow to put in headwords first and listing cognates...though most of them are off the top of my head. It should be possible to pull a citation up in the finished spreadsheet for any cognate square, I think. Is there any way to put mouseover text into a Google Docs spreadsheet? [EDIT: Oh, wait, I can put in comments.])

Because there are so many languages with cognates for some words, when I have more than one language in a branch to choose from, I'm only going to use one unless there's a good reason to (so if there's a Greek cognate no need for Phrygian)- is this a good idea?