Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
German nieder-

→ English nether- (cognate)
→ German Niederschlag (affix)
→ German Niederschrift (affix)
→ German Niederwild (affix)
→ Luxembourgish nidder- (cognate)