Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
měkký
←
Proto-Slavic
*mękъkъ
(inherited)
←
Old Czech
měkký
(inherited)
→
Czech
měkkýš
(affix)
→
Czech
měkkost
(suffix)
→
Czech
měknout
(affix)
→
Latvian
mīksts
(cognate)
→
Serbo-Croatian
mek
(cognate)
→
Serbo-Croatian
мек
(cognate)
→
Slovak
mäkký
(cognate)
→
Silesian
miynki
(cognate)