| Word | Definitions | Synonyms |
|---|---|---|
| birken | (adjective) consisting of or made of wood of the birch tree | Synonyms: birch, birchen |
| darken | (verb) become dark or darker | - |
| (verb) make dark or darker | - | |
| (verb) tarnish or stain | - | |
| harken | (verb) listen; used mostly in the imperative | Synonyms: hark, hearken |
| hearken | (verb) listen; used mostly in the imperative | Synonyms: hark, harken |