Proto-Slavic *-ikъ

→ English Gorelik (mention)

→ Bulgarian войник (mention)

→ Czech trpaslík (affix)

→ Old Church Slavonic -икъ (inherited)

→ Old Church Slavonic -ьникъ (mention)

→ Macedonian работник (mention)

→ Polish -ik (inherited)

→ Russian -ик (inherited)

→ Russian веник (mention)

→ Russian работник (mention)

→ Russian -ник (mention)

→ Serbo-Croatian -ik (inherited)

→ Serbo-Croatian -ik (inherited(sh/sk))

→ Serbo-Croatian -ик (inherited)

→ Serbo-Croatian работник (mention)

→ Serbo-Croatian -ík (inherited(sh/sk))