Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cimbrian
maanont
←
German
Monat
(cognate)
←
English
month
(cognate)
←
Proto-Germanic
*mēnōþs
(inherited)
←
Middle High German
mānōt
(inherited)
←
Old High German
mānōd
(inherited)
←
Icelandic
mánuður
(cognate)
←
Dutch
maand
(cognate)