1. Etymology of the French word somme

Derivations in French

assommer, sommer

Cognates

Catalan son, Dutch som, English sum, German Summe, Icelandic summa, Italian sonno, Italian soma, Italian somma, Italian summa, Latin summa, Lithuanian suma, Polish suma, Portuguese somno, Provençal sauma, Russian cyммa, Spanish suma, Spanish salma, Swedish summa

2. Etymology of the French word somme