→
Belarusian каб (compound)→
Old Church Slavonic кꙑи (inherited)→
Lower Sorbian kenž (mention)→
Macedonian кој (inherited)→
Macedonian никој (mention)→
Macedonian некој (mention)→
Russian кой (inherited)→
Russian кабы (compound)→
Serbo-Croatian kaj (derived)→
Serbo-Croatian ki (inherited)→
Serbo-Croatian koji (inherited)→
Serbo-Croatian који (inherited)→
Serbo-Croatian neki (derived)→
Serbo-Croatian неки (derived)