Proto-Slavic *sьrpъ

→ Belarusian серп (inherited)

→ Bulgarian сърп (inherited)

→ Czech srp (inherited)

→ Czech srp (inherited(cs/zlw-ocs))

→ Old Church Slavonic срьпъ (inherited)

→ Lower Sorbian serp (inherited)

→ Dzongkha ཟོརཝ (cognate)

→ Finnish sirppi (derived)

→ Upper Sorbian serp (inherited)

→ Latvian sirpis (cognate)

→ Macedonian срп (inherited)

→ Livvi čirpi (derived)

→ Polish sierp (inherited)

→ Polabian sarp (inherited)

→ Russian серп (inherited)

→ Russian סערפּ (inherited(ru/yi))

→ Serbo-Croatian srp (inherited)

→ Serbo-Croatian срп (inherited)

→ Slovene srp (inherited)

→ Ukrainian серп (inherited)