Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
płochy
←
Proto-Slavic
*polxъ
(inherited)
→
Polish
Płoch
(mention)
→
Polish
Ploch
(mention)
→
Polish
płochliwy
(suffix)
→
Russian
полох
(cognate)
→
Serbo-Croatian
плах
(cognate)