beth (defunct)

• The words "vaccine" and "buckaroo" share a root word! The Latin "vacca," meaning "cow"!! This is because the first vaccine was derived from cowpox, and buckaroo comes from spanish "vaquero," meaning "cowboy"!
• The state of New Mexico was NOT named after the country of Mexico, and in fact was named that several centuries EARLIER than the country!! (New Mexico has been called that since 1560s, while Mexico only gained that name in the 1820s.) Both of them are named after the Valley of Mexico, which is the location of modern-day Mexico City! At the time of New Mexico's naming, the location of modern-day Mexico was called New Spain!
• Speaking of state names, California was likely named after a fictional location in a 16th-century Spanish romance novel! In Las Sergas de Esplandián, there's a fictional island named California, named after its ruler, Queen Calafia (whose name possibly comes from the Arabic word "khalif")!!
• Nobody knows where the word "dog" comes from.

“Car” and “horse” actually share a linguistic origin!

Scale as in size or climbing comes from the Latin scāla, originally from Proto-Indo-European *skend-, to jump, dart or climb.

Scale as in overlapping arrangement of flat pieces comes from Old French escale, originally from Proto-Indo-European *(s)kelH-, to cut or divide.

Scale as in a device to weigh thing comes from Old Norse skál, bowl. Originally from Proto-Germanic *skēlō.

"To explode [something]" originally meant "to sarcastically applaud a performer until they left the stage in shame." https://www.etymonline.com/word/explode

for which wikipedia has an extremely funny illustration

the intermediate meaning was "disguise", "parody", or "burlesque" but still uh don't love that.

And if you think that's bad you should see the etymology of "bad"

It is possibly from Old English derogatory term bæddel "effeminate man"