Courtesy titles are formal terms used for respect and esteem. Señora refers to married or widowed women, señorita to single women. Terms like Señor (Mr.), Don (owner), Caballero (gentleman) are also used
Ms. is an English honorific for women regardless of marital status. Term originated from Mistress in 17th century England. Mrs. and Miss gained marital status connotations in 19th century. First modern proposal appeared in 1901 Massachusetts Republican
Mrs. originated as a contraction of Mistress for both married and unmarried women. Writers like Defoe and Johnson used Mrs. for unmarried women. The split into Mrs. for married and Miss. began in the 17th century
Handshake originated as peaceful gesture or symbolic commitment. Earliest known depiction found in 9th century BC Assyrian relief. Ancient Greeks practiced handshaking as early as 5th century BC
Sir derives from Sire, a medieval honorific for knights. Term first documented in English in 1297. Comes from Vulgar Latin senior and seigneur
Madame is mandatory in official documents, including administrative forms. Mademoiselle was banned from legal documents by French Prime Minister Fillon in 2012. Madame is abbreviated as "Mme", Mademoiselle as "Mlle"