Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*glěnь
→
Czech
hlen
(inherited)
→
Polish
glon
(inherited)
→
Slovak
hlien
(inherited)
→
Slovene
glen
(inherited)
→
Old Czech
hlen
(inherited)
→
Old Polish
glan
(inherited)