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