French sueur

← Old French suor (inherited)

← Old French suur (mention)

← Proto-Indo-European *sweyd- (root)

← Proto-Indo-European *swoyd- (derived)

← Proto-Indo-European *sweyd- (mention)

← Latin sūdōrem (inherited)

← Latin sūdor (mention)

→ English sweat (cognate)

→ Catalan suor (cognate)

→ Ido sudoro (borrowed)