In lithuanian @ is called ‘eta’ which means absolutely nothing. They just took english name for the symbol (as pronounced) and stuck lithuanian ending on it.
This sorta thing wasn’t uncommon as late as a decade ago and I thought it was rather unhelpful.
However now our national language commission is hellbent on finding proper lithuanian names for every computer related term and they do that by digging up archaic terms that sound as alien to lithuanians as to everyone else.