Originally Posted by
thumpism
Look closely. Every one of those I've ever seen is stamped Spirt, not Spirit. It would be nice to know the etymology of that name choice.
Okay, that’s definitely a
Mandela Effect moment. My brain has always filled in the missing “i”. I suspect that the name is a mistranslation. Back nearly 50 years ago we had a mass spectrometer from Hitachi (I think) that had an insatrucksion manual with all kinds of interesting other words in it.
Merriam-Webster says that it is an old version of the verb
spurt as in “growth spurt” but that seem a very odd usage.