Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Helm
←
Danish
hjelm
(cognate)
←
English
helm
(cognate)
←
Proto-Germanic
*helmaz
(inherited)
←
Middle High German
helm
(inherited)
←
Proto-West Germanic
*helm
(inherited)
←
Old High German
helm
(inherited)
←
Low German
Helm
(cognate)
←
Dutch
helm
(cognate)
→
English
helm
(cognate)
→
German
Stahlhelm
(compound)
→
German
behelmt
(confix)
→
German
Schutzhelm
(compound)
→
Gothic
𐌷𐌹𐌻𐌼𐍃
(cognate)
→
Luxembourgish
Helm
(cognate)
→
Dutch
helm
(cognate)
→
Old Norse
hjalmr
(cognate)
→
Polish
hełm
(borrowed)