The word honeymoon was first recorded in a 1546 dialect book as hony moone, and other spellings around that time included honney moone, hony-moon, and hony-moone. As expected, it all boils down to the word honey and the word moon, and the reason for this is disputed. The Oxford English Dictionary suggests that it's a pessimistic reference to how love wanes like the moon, or an even more pessimistic statement that the love in question won't last longer than a month. Over time, this evolved from a less tongue-in-cheek expression to one meant sincerely, and usage has steadily increased over time. Honey, through Proto-Germanic hunang, comes from the Proto-Indo-European root keneko, used for things with yellow or brown colors, and I've written about the word moon before.
Hello! I'm Adam Aleksic. This year, I graduated from Harvard University with a degree in Government and Linguistics. There, I co-founded the Harvard Undergraduate Linguistics Society and wrote a thesis on Serbo-Croatian language policy, magna cum laude. In addition to etymology, I also really enjoy philosophy, trivia, vexillology, geography, board games, conlanging, art history, and law.