Tuesday, October 20th, 2020
This is one of those words I learned and said to myself, wow, this is nonintuitive, people must get this wrong all the time.
And they do.
But the dictionary is pretty clear on the origin:
late 17th century: from Latin paenultimus, from paene ‘almost’ + ultimus ‘last’
And the English Usage Stack Exchange offers a couple of useful variations to impress people at cocktail parties when there are again cocktail parties:
propreantepenultimate —(yeegads!) four before the end.
At any rate, our days here are coming to a close, so this applies.