Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
þiedan
←
Proto-Germanic
*þiudijaną
(inherited)
←
Proto-Germanic
*þeudō
(derived)
←
Old High German
diota
(cognate)
←
Gothic
𐌸𐌹𐌿𐌳𐌰
(cognate)
←
Proto-Indo-European
*tewtéh₂
(derived)
←
Proto-Indo-European
-
(cognate)
←
Lithuanian
tauta
(cognate)
←
Old Norse
þjóð
(cognate)
←
Old Saxon
thioda
(cognate)
←
Old Irish
túath
(cognate)