Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
idle
←
Old English
īdel
(inherited)
←
German
eitel
(cognate)
←
English
ill
(cognate)
←
Middle English
idel
(inherited)
←
Middle English
ydel
(mention)
←
Proto-Germanic
*īdalaz
(inherited)
←
German Low German
iedel
(cognate)
←
Dutch
ijdel
(cognate)
←
Old Norse
illr
(cognate)
→
English
-ly
(mention)
→
English
loaf
(link)
→
English
idly
(suffix)
→
English
idleness
(suffix)
→
English
laze
(link)
→
English
idler
(suffix)
→
English
nonidle
(prefix)
→
English
idlehead
(affix)
→
English
idlehood
(suffix)
→
English
idleth
(suffix)
→
English
idlesome
(suffix)
→
English
idleship
(affix)
→
English
overidle
(prefix)
→
English
idlish
(suffix)
→
Welsh
iâl
(cognate)
→
German
eitel
(cognate)
→
Luxembourgish
eidel
(cognate)
→
Dutch
ijdel
(cognate)
→
Swedish
idel
(cognate)