Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Spanish
sabun
←
Latin
sāpōnem
(derived(osp/bkd))
←
Latin
sāpō
(derived(osp/bkd))
←
Latin
sāpōnem
(derived(osp/mdh))
←
Latin
sāpō
(derived(osp/mdh))