Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
ach
←
Middle High German
ach
(inherited)
←
Old High German
ah
(inherited)
→
English
ach-laut
(mention)
→
Afrikaans
ag
(cognate)
→
German
ach so
(mention)
→
German
hach
(mention)
→
German
ächzen
(mention)
→
German
Achlaut
(mention)
→
German
Ach
(mention)
→
Latvian
ak
(borrowed)
→
Norwegian Bokmål
a
(derived)
→
Yiddish
אַך
(cognate)