There seem to be several mundane words that the game filter considers profane.
https://forums.atlas-65.com/t/profanity-filter/3095?u=xion4012
It took me a long time to figure out why they called it “Echino”-cactus. Echino is latin for spiney/spikey, and there is a variety of cactus called “Spikey”-cactus. Turns out spike is a slur.