Hope not dragging this thread out too long!
Apparently the use of “right” and “left” as a base for “north” and “south” is quite common in a lot of languages-
and-
Particularly obvious in the Welsh “south”, though, as Diane points out. I seem to remember that one of the things that implied Asser’s “Life of Alfred” was intended primarily for a Welsh audience was his use if the Latin for “Right” to mean “South”, which would only make sense if the connection was obvious in the language of the target audience. Have no Latin to speak of myself, though.
[edit- and, indeed the connection between west and evening- West possibly being ultimately connected to vesper]-