wirken

1. to function, to be effective, to work
2. (copulative, sometimes impersonal, often with auf (to) + accusative) to appear, to seem
3. to perform (some action), to achieve (some effect), to work (cause to happen), to cast (a spell)
4. to work or be active in a certain field or activity
5. to work (toward a goal or for a cause)
6. to take effect, to be effective
7. to knit (with yarn), to brocade
8. to knead