Estonian kesk-

← Finnish keski- (mention)

← Proto-Finnic *keski (inherited)

← Proto-Uralic *keske (derived)

→ Estonian keskus (suffix)

→ Estonian keskiga (affix)

→ Estonian keskmine (suffix)

→ Estonian kesköö (affix)

→ Estonian kesksõna (affix)

→ Estonian kestma (suffix)

→ Estonian keset (mention)

→ Estonian keskkond (suffix)

→ Finnish keski- (cognate)