Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
or-
←
Old English
or-
(derived)
←
Old English
ā-
(cognate)
←
German
ur-
(cognate)
←
English
ur-
(cognate)
←
English
a-
(link)
←
Middle English
or-
(derived)
←
West Frisian
-
(cognate)
←
Proto-Germanic
*uz-
(derived)
←
Gothic
𐌿𐍃-
(cognate)
←
Proto-Indo-European
*uds-
(derived)
←
Dutch
oar-
(mention)
←
Dutch
oor-
(cognate)
←
Dutch
oer-
(mention)
→
English
orgulous
(affix)
→
English
ur-
(cognate)
→
English
orgueil
(mention)
→
English
ordalium
(affix)
→
English
orlay
(mention)
→
Icelandic
úr
(mention)