Speaking as a German and a software developer: just because you can, does not mean you should.
Sometimes it is easier and better to not stuff words together and give readers a bad time than to write “Schiffsschraubeneichungsvorgabenverordnungsüberwacher”.
This is something that can easily get refactored, because the purpose of alia the variables is right there in the name. This is way better that spending three days to try to figure out what the purpose of var1 is.