4 letters
- luxe13
- lyre7
- merl8
- much13
- mule9
- mure8
- nurl7
- orle5
- ouch10
- pech12
- pleb11
- puce11
- pule9
- pure8
- purl9
- race7
- rale5
- real5
- rebs7
- reck11
- recs7
- reel5
- rely7
- resh6
- rhea6
- rhus7
- rice7
- rich9
- riel5
- rile5
- robe7
- role5
- roue5
- rube8
- rubs8
- ruby10
- ruck12
- rude6
- rued6
- ruer5
- rues5
- rule6
- ruly8
- rune6
- ruse5
- rush7
- ruth7
- shul8
- slub9
- slue6
- slur6
- such10
- suer5
- sure5
- thru7
- true5
- tube8
- tule6
- unbe9
- urbs8
- urea5
- urge7
- uric8
- user5
- verb11
- yech11
- yuch12
- yule8
- zebu17