Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latvian
ar
←
Ancient Greek
ἄρα
(cognate)
←
Proto-Indo-European
*h₂er-
(derived)
←
Lithuanian
ar
(cognate)
→
Lithuanian
ar
(cognate)
→
Latgalian
ar
(cognate)
→
Latvian
ir
(cognate)
→
Latvian
arī
(mention)
→
Latvian
arvien
(compound)
→
Latvian
arlabvakar
(mention)
→
Latvian
arlabunakti
(mention)