Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
lekki
←
Proto-Indo-European
*h₁lengʷʰ-
(mention)
←
Proto-Slavic
*lьgъkъ
(inherited)
→
Polish
lekko
(suffix)
→
Polish
lżyć
(mention)
→
Polish
lżyć
(suffix)
→
Polish
Lekki
(mention)
→
Polish
lekkoduch
(affix)
→
Polish
lekkomyślny
(affix)
→
Polish
lekkostrawny
(affix)
→
Polish
lekkość
(affix)
→
Silesian
leki
(cognate)