In Austrian German, (because "common" is relative to something e.g. geographical area, group of people)
- "einhin" and
- "einher"
are used, but usually pronounced
- "eini" and (e.g. Er springt eini.)
- "eina" (e.g. Er springt eina.)
respectively, (unless you're in the Tyrolerean Uplands where the "h" is emphasized as a fricative: "eihi" and "eiha", respectively.)
This might seem very foreign someone unfamiliar with this, but it is not. Consider the ubiquitous “vorhin” and “vorher”. Whether prefixed or suffixed, it is merely a convention. Some dialects use one of the forms to express both directions, therefore not referencing the speakers location. However, in German, even in most dialects, the direction relative to the person is important.