The above, of course, is Old English.
án = one/an.
folc = folk (though in modern English "people" captures the meaning better).
ríce = doesn't survive in modern English, except in the word bishopric.
walda = literally "wielder", found in Old English words such as Bretwalda ("overlord of Britain"), etc. This third component was a judgement call - a number of terms could have been used, but I felt this was most appropriate. No Old English cognate of the German Führer exists, though the word, meaning "guide" in German, is related to the Old English fær ("road" or "journey"), which still exists in the modern English "wayfarer" and "sea-farer").