Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
tá
←
Old English
þan
(cognate)
←
Old English
þā
(mention)
←
Faroese
tá ið
(link)
←
Faroese
táið
(link)
←
Proto-Germanic
*taihwō
(derived)
←
Proto-Germanic
*þan
(derived)
←
Gothic
𐌸𐌰𐌽
(cognate)
←
Proto-Indo-European
*deyḱ-
(root)
←
Proto-Indo-European
*deyḱ-
(derived)
←
Old Norse
tá
(derived)
←
Old Norse
þá
(derived)
→
Faroese
tátíð
(compound)
→
Old Norse
þá
(link)
→
Scots
tae
(cognate)