Russian октябрь

← Old Church Slavonic октомбрь (mention)

← Old Church Slavonic октѫбрь (mention)

← Old Church Slavonic октоврь (mention)

← Latin octōber (derived)

← Old East Slavic октѧбрь (inherited)

← Old East Slavic (mention)

→ Romanian Octeabriscoe (affix)