The Greek that is translated into English as “anchor” in English is, due to non-existing nautical language, rendered as kayo’ barko (“an instrument that keeps the boat from drifting”) in Chol (source: Steven 1979, p. 76), “iron hooks” (“that make the boat stop”) in Isthmus Mixe, “irons called ‘anchors’ with ropes” in Teutila Cuicatec (source for this and above: Ronald D. Olson in Notes on Translation January, 1968, p. 15ff.), “an iron attached to a rope attached to the boat so that it may not drift away” in Lalana Chinantec (source: John Beekman in Notes on Translation, March 1965, p. 2ff.), and “big canoe stopping metal” in Kouya.
Eddie Arthur tells the story of the translation into Kouya: “A slightly more prosaic example comes from Paul’s sea voyages in the Book of Acts. In Acts 27, when Paul’s ship was facing a huge storm, there are several references to throwing out the anchor to save the ship. Now the Kouya live in a tropical rain-forest and have no vessels larger than dug-out canoes used for fishing on rivers. The idea of an anchor was entirely foreign to them. However, it was relatively easy to devise a descriptive term along the lines of ‘boat stopping metal’ that captured the essential nature of the concept. This was fine when we were translating the word anchor in its literal sense. However, in Hebrews 6:19 we read that hope is an anchor for our souls. It would clearly make no sense to use ‘boat stopping metal’ at this point as the concept would simply not have any meaning. So in this verse we said that faith was like the foundation which keeps a house secure. One group working in the Sahel region of West Africa spoke of faith being like a tent peg which keeps a tent firm against the wind. I hope you can see the way in which these two translations capture the essence of the image in the Hebrews verse while being more appropriate to the culture.