Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
clum
←
Old English
clom
(inherited)
←
Old English
clam
(mention)
←
Old English
clamm
(mention)
←
Old English
clumian
(cognate)
←
English
clam
(mention)
←
Middle English
clum
(inherited)
←
Middle English
clom
(mention)
←
Middle English
*clomen
(mention)
←
Middle English
*cleomen
(mention)
←
Middle English
acleomen
(cognate)
←
Middle English
clumsen
(cognate)
←
Middle English
clomsen
(mention)
←
Dutch
kleumen
(cognate)