Surprised it hasn't come up in this thread already, but an excellent and free resource for this sort of thing is EtymOnline[0]. It's volunteer-made[1], has an e

Surprised it hasn't come up in this thread already, but an excellent and free resource for this sort of thing is EtymOnline[0]. It's volunteer-made[1], has an easy search and quick on-results-page answers. Here's the search page for Log: http://www.etymonline.com/index.php?term=log http://www.etymonline.com/index.php?term=log [0] http://www.etymonline.com http://www.etymonline.com [1] at least mostly - see https://news.ycombinator.com/item?id=2580631 https://news.ycombinator.com/item?id=2580631