Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
eahtoþa
←
Proto-Germanic
*ahtudô
(inherited)
→
English
eighth
(inherited)
→
Middle English
eiȝtthe
(inherited)
→
Gothic
𐌰𐌷𐍄𐌿𐌳𐌰
(cognate)
→
Scots
aucht
(inherited)
→
Scots
aicht
(inherited)