The word for "dog" in Mbabaram, an extinct Australian Aboriginal language completely unrelated to English, is "dog".

They're somewhat common

Also, try /r/lingusitics or /r/asklinguistics

Not exactly what you are asking but I hope I can provide you with two different words that developed from the same idea. Whiskey and vodka come from the same idea and both words developed independently of each other, in different cultures with a similar medium. The word whiskey developed from the word usquebaugh over several generations of mispronunciation. Usquebaugh roughly translates to water of life, and if you ask a scotch distiller what the most important part of their product is, they will say the water they use.

Vodka has a couple different stories, but one of them works in a similar way where the Latin aqua vitae is mispronounced and elided until it sounds like vodka.

I have an interest in etymology and know a whole bunch about alcohol. I've worked in the bar and restaurant business for about 15 years, studied Latin for about 6, but that was a long time ago and I don't remember all of it. I also don't know off the top of my head the best way to source this other than Wikipedia. That being said, I hope I'm not spreading false information, because I really think this is cool.

"So" in Japanese can be translated as "so" in English. (i.e. "So desu ka." = "Is that so?")