Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
þeaw
←
Proto-Germanic
*þawwaz
(inherited)
←
Old High German
-
(cognate)
←
Old High German
*dou
(mention)
←
Proto-Indo-European
*steh₂-
(cognate)
←
Old Frisian
thāw
(cognate)
←
Old Saxon
thau
(cognate)