Proto-Slavic *doba

→ Czech doba (derived)

→ Old Church Slavonic доба (inherited)

→ Old Church Slavonic подоба (mention)

→ Old Church Slavonic подобие (inherited(cu/ru))

→ Macedonian доба (inherited)

→ Polish doba (inherited)

→ Russian надо (affix)

→ Russian надоба (mention)

→ Serbo-Croatian doba (inherited)

→ Serbo-Croatian доба (inherited)

→ Ukrainian доба (inherited)