Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Japanese
まるぶ
←
Japanese
(mention)
←
Japanese
転ぶ
(mention)
←
Proto-Japonic
*mar-
(inherited)
←
Okinawan
まーすん
(cognate)
→
Miyako
まーㇲ゙さまーㇲ゙
(cognate)
→
Yaeyama
まーらしぃん
(cognate)
→
Okinawan
まーすん
(cognate)
→
Kunigami
まーすん
(cognate)