Sir is a title of respect used in several modern contexts.
It was once used (without the person's name) as a courtesy title among equals, but in
common usage it is now usually reserved for one of superior rank or status, such as an educator or commanding officer, or in age (especially by a minor); as a form of address from a merchant to a
customer; in formal correspondence (Dear Sir, Right Reverend Sir); or to a stranger (Sir, you've dropped your
hat).
The equivalent for a woman is madam.
Origin
Sir derives from the Middle French honorific title sire (messire
gave 'mylord'), from the Old French sieur (itself a contraction of
Seigneur meaning 'lord'), from the Latin adjective
senior (elder), which yielded titles of respect in many European
languages.
The form sir entered English in 1297, as title of honor of a knight or baronet, being a variant of sire, which was already used in English since
c.1205 as a title placed before a name and denoting knighthood, and to address the (male) Sovereign since c.1225, with additional
general senses of "father, male parent" is from c.1250 and "important elderly man" from 1362.
Formal styling
In formal protocol Sir is the correct styling for a knight or a baronet (the UK nobiliary
rank just below all Peers of the realm), used with the knight's given name or full name, but not with the surname alone (Sir
Isaac Newton or Sir Isaac, not Sir Newton). However, in Chinese, the
title Sir (爵士) is used with the knight's surname or full name. The equivalent for a woman is Dame (for one who holds the title in her own right). The wife of a knight, or baronet, is however styled
Lady (Surname).
With regard to British knighthood, a person who is not a citizen of a Commonwealth
realm who receives an honorary knighthood is entitled to use any postnominal letters associated with the knighthood, but
not the title "Sir". Dual nationals holding a Commonwealth citizenship that
recognise the British monarch as head of state are entitled to use the styling, although common
usage varies from country to country: for instance, dual Bahamian-American citizen
Sidney Poitier, knighted in 1974, is often styled Sir Sidney Poitier, particularly
in connection with his official ambassadorial duties, although he himself rarely employs the
title.
Use in disciplined services
The common use of Sir instead of the rank specific address for a senior officer in a military, police or other hierarchical organisation is rather specific to
English. In most languages, no such general address is considered respectful, or the two are combined, as in German Herr
followed by the rank. In French the possessive pronoun mon precedes the rank, not unlike My Lord or Mein Führer.
"Sir", on its own, is sometimes used by schoolchildren to address a male teacher. It is common in British tabloid newspaper slang as a shorthand for 'schoolteacher': Sir's sex
shame. Usage of "sir" commonly appears in schools in portions of the Southern United
States.
When addressing a (male only, unlike in many fictional works) superior (e.g. Officer or Warrant Officer, but--most of the time--not a non-commissioned officer, in the military), "sir" is used to replace his specific rank.
However, a United States Marine recruit addresses both commissioned and
non-commissioned officers as "sir", especially drill instructors. Enlisted members of the United States Air Force always address superior non-commissioned officers--including Military
Training Instructors--as "sir" and, in certain situations, even non-NCOs may be addressed as "sir", most often Senior Airmen
(E-4s) serving as training leaders or instructors at technical schools.
Possibly the shortness of the word helps explain another, in a sense compensating, idiomatic but non-official practice in
American English: emphatically saying Sir both in front and behind an obedient response in clear voice to the senior, especially
during drill, e.g., "Sir, yes, sir!"
Often, youths playing American Football at the secondary school level and sometimes
at the university level address their coaches as "sir." "Sir" is typically used when the players address the coach as a team,
e.g., "Yes, sir!"
In both the United States Military and British Armed Forces addressing an NCO as "Sir"
is incorrect, and the almost universal response to such an address is "Don't call me sir, I work for a living".
In the Royal Canadian Mounted Police only commissioned officers are addressed as "sir", NCOs and constables are addressed by their rank.
Miscellaneous
- Until the 17th century it was also a title of pirates (the cognate monsignor, from French
monseigneur 'my sire', still is used for filibusters)
- Various persons in authority, e.g. District Judges in the United Kingdom, are also
addressed as "sir".
- Sirrah was a 16th century derivative that implied the inferiority of the
addressee.
- The informal forms sirree and siree are merely devised for emphasis in speech, mainly after Yes or No.
- Not to be confused with the now exclusively monarchical (i.e. royal) Sire, even though this has
the same etymological root.
References
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