Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Prussian
gelso
←
Lithuanian
geležìs
(cognate)
←
Latvian
dzèlzs
(cognate)
←
Proto-Slavic
*želězo
(cognate)
→
Latvian
dzelzs
(cognate)