Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
чомусь
←
English
[[for]] [[some]] [[reason]]
(link)
←
Polish
czemuś
(cognate)
←
Ukrainian
чому́
(suffix)
←
Ukrainian
сь
(suffix)
←
Ukrainian
чо́му
(suffix)
←
Ukrainian
сь
(suffix)