Much flying terminology is derived from the navy; we have a captain and a first officer, who are both pilots. The aircraft has a rudder, which yaws it to port or starboard. We flightplan in nautical miles and measure speed in knots.
Every day's a schoolday for such an open-minded, inquisitve fellow as yourself, sw. wd.
Ze Chermans, innit. Along with their Viking cousins. "Star .." comes from their word Steuer meaning "steering, or to steer; from the days when ships went from two steering oars to just one. Most people are right-handed so the port side (Back, in their money) would always be at the steering chap's .. well .. back.
As they say, Steuern zahlt man von rechts wegen; Taxes (another meaning for "Steuern") are paid from the/because it is, right. So you can easily remember it.
"Plenty of strikers can score goals," he said, gesturing to the famous old stands casting shadows around us.
"But a lot have found it difficult wearing the number 9 shirt for The Arsenal."