Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
murky
←
English
murk
(suffix)
←
English
y
(suffix)
←
Middle English
mirky
(inherited)
←
Old Norse
myrkr
(cognate)
←
Russian
мрак
(cognate)
←
Serbo-Croatian
мра̑к
(cognate)
→
English
murk
(link)
→
English
murkily
(suffix)
→
English
murkiness
(suffix)
→
Arabic
طحلب
(link)