Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
rudy
←
Proto-Slavic
*rudъ
(inherited)
→
Latvian
ruds
(cognate)
→
Polish
Rudy
(mention)
→
Polish
rudo
(suffix)
→
Polish
rudzik
(affix)
→
Polish
złotorudy
(compound)
→
Polish
Rudol
(affix)
→
Polish
rudzielec
(suffix)
→
Russian
рудой
(cognate)
→
Russian
рудый
(cognate)