It's interesting to compare how different professions handle the ambiguity in left/right. In the maritime world they went with an approach at one extreme, where they just use two completely separate words, "port" and "starboard." (Though that's far from the only case where there's a special word for something on a boat.) At the other extreme you have the medical profession where the first thing you learn in medical s…
In French, starboard and port are "tribord" (same etymology as "starboard", through Dutch) and "bâbord" ("back (of the oarman) board"). On stage, they are "côté cour" and "côté jardin" because the "Comédie-Française" theatre during the 1770 was in the Tuileries palace, and the stage was oriented with the Louvre courtyard on its right, and the Tuileries garden on its left.
The word ‘back’ in German meaning ‘back’ in English doesn’t even exist. Only in this one loanword from Low German.
Only today I looked up this word, I never knew or understood that Backbord is literally backboard.