Knife River 
(nīf)
(nīf) A river, about 265 km (165 mi) long, of west-central North Dakota flowing east to the Missouri River.
- paleobotanically
- paleobotanist
- paleobotany
- Paleocene
- paleoclimatologist
- paleoclimatology
- paleoconservative
- paleoecologic
- paleoecological
- paleoecologist
- paleoecology
- Paleogene
- paleogeneticist
- paleogenetics
- paleographer
- paleographic
- paleographical
- paleography
- Paleo-Indian
- paleoliberal
- paleolith
- Paleolithic
- paleomagnetism
- paleontologic
- paleontological