Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*sęknǫti
→
Old Church Slavonic
исѧкнѫти
(inherited)
→
Polish
siąknąć
(inherited)
→
Polish
siąkać
(inherited)
→
Russian
сякнуть
(inherited)
→
Albanian
thek
(cognate)