Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
thingummy
←
English
thingum
(suffix)
←
English
y
(suffix)
←
English
thingamabob
(mention)
←
English
thingamajig
(mention)