Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
tīesdei
→
Danish
tirsdag
(derived)
→
West Frisian
tiisdei
(inherited)
→
Saterland Frisian
Täisdai
(inherited)