[orestis]

In Greek boating terms, we use just plain left and right. At sailing school we were taught that left means always the left side of the ship as it travels forward, and similarly the right.

We do use different words for the direction of the ship facing towards or away from the wind though.

Not sure if the ancients used other words though. We managed to avoid confusion for a few hundred years though.

[jamager]

In Spanish is babor/estribor. Nothing to do with izquierda/derecha, no idea about etimology on this.

[MoSattler]

It has the same origin as the English equivalents.

https://en.wiktionary.org/wiki/estribor