Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
shiaghtin
←
Irish
seachtain
(cognate)
←
Latin
septimāna
(derived)
←
Latin
septimus
(mention)
←
Old Irish
sechtmain
(inherited)
→
Manx
tree-hiaghtinoil
(confix)
→
Manx
shiaghtinoil
(affix)
→
Manx
shiaghtinane
(suffix)