I've been making etymology posts for twenty days and I still have no clue what a blog meant, so I decided to research it. Blog was actually a shortening of weblog, or web (meaning "internet") and log meaning "journal". I don't want to go into web too much, because I'm saving that for a later post, but take my word for it when I say it traces back to a PIE word for "fabric". Meanwhile, the word log first springs to mind a gnarled broken-off piece of a tree. The log in weblog is different, but actually does come from the exact same word. Descending from Norse lag, meaning "fallen tree", English adopted log, which means "part of a fallen tree", not much of an etymological transition. Then a curious transition occurred. Sailors created log-books to make records of speed, which was measured at the time by a piece of wood (a part of a log) at the end of a string. Log-books then got shortened to logs, which was a term adopted into a portmanteau with web to make weblogs. The we- prefix got dropped accidentally, and a b got added to log to make blog. Curious story really. Blog-worthy.
Adam Aleksic, a rising sophomore studying linguistics and government at Harvard University, has been described as the internet's sixth most famous etymologist. He also has disturbing interests in politics, vexillology, geography, board games, conlanging, and law.