Silly bug with spellcheck and apostrophes
In Hebrew, words that end with the sound "ch"such as "Sandwich" or "Greenwich" are written with a "'ץ" and an apostrophe. So:
Sandwich - סנדוויץ'
Greenwich - גריניץ'
The problem is that word's spellcheck ignored the apostrophe and tried to correct it by suggesting you add an apostrophe.
So you do, and then it ignored the apostrophe again, and tried to correct it by suggesting you add an apostrophe... You see where this is going.
Here's a funny gif of the issue:
It's obviously not a showstopping bug, but still a bug, so there you have the report :-P