Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
þou
←
Old English
þū
(inherited)
←
Proto-Germanic
*þū
(inherited)
←
Proto-West Germanic
*þū
(inherited)
←
Proto-Indo-European
*túh₂
(inherited)
→
English
thou
(mention)
→
Scots
thou
(inherited)