Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
-íssimo
←
Latin
-issimus
(borrowed)
→
Italian
-issimo
(cognate)
→
Portuguese
altíssimo
(affix)
→
Portuguese
duríssimo
(affix)
→
Portuguese
meritíssimo
(link)
→
Portuguese
santíssimo
(affix)
→
Portuguese
cuidadosíssimo
(affix)
→
Portuguese
riquíssimo
(affix)
→
Portuguese
gravíssimo
(affix)
→
Portuguese
caríssimo
(affix)
→
Portuguese
tristíssimo
(affix)
→
Portuguese
sereníssimo
(affix)
→
Portuguese
amplíssimo
(affix)
→
Portuguese
ilustríssimo
(affix)
→
Portuguese
puríssimo
(affix)
→
Portuguese
vastíssimo
(affix)
→
Portuguese
suavíssimo
(affix)
→
Portuguese
importantíssimo
(affix)
→
Portuguese
mesmíssimo
(affix)
→
Portuguese
profundíssimo
(affix)
→
Portuguese
raríssimo
(affix)