sieur

From the oblique case of Old French sire (see also French sire), from Vulgar Latin *seior (“lord, elder”), from Latin senior (“older, elder”) (whence also seigneur, from the accusative form), from senex (“old”). Cognate with Spanish señor, Italian signore, etc. Also a doublet of senior and sire.

• IPA^(key): /sjœʁ/

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• Homophone: scieur

sieur m (plural sieurs)

1. sir, Mr., lord; title of respect for a man

   Synonym: s^r

• “sieur”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.