can, pot

English "can", German "kanne", Romanian "canã", Albanian "kane:",
Bulgarian "kana"
in all these languages the word has the same semantism.
If I take a look in my DEX I see Romanian "cana" = from German "kanne"
or from Bulgarian "kana"
If I take a look in my German dictionary I find that German "Kanne" is
from Latin "cana" where Latin "cana" means reed, pipe

So far it seems clear. The Germans got the Latin word, they modified the
sense, and from Germans the Albanians, Romanians and Bulgarians got that
word too. Right?
It seems so. If we take a look in a Latin text of Festus we find as
follows:

" Cana dicunt Graeci, nos canistra et per diminutionem canistella."

Well, in this case ? In this case which is the right etymology of the
word "Kanne/can/canã/kana/kane:"?

regards
Alex