What's the difference between sergeant and sergeanty?

Sergeant

Definition:

(n.) Formerly, in England, an officer nearly answering to the more modern bailiff of the hundred; also, an officer whose duty was to attend on the king, and on the lord high steward in court, to arrest traitors and other offenders. He is now called sergeant-at-arms, and two of these officers, by allowance of the sovereign, attend on the houses of Parliament (one for each house) to execute their commands, and another attends the Court Chancery.
(n.) In a company, battery, or troop, a noncommissioned officer next in rank above a corporal, whose duty is to instruct recruits in discipline, to form the ranks, etc.
(n.) A lawyer of the highest rank, answering to the doctor of the civil law; -- called also serjeant at law.
(n.) A title sometimes given to the servants of the sovereign; as, sergeant surgeon, that is, a servant, or attendant, surgeon.
(n.) The cobia.

Example Sentences:

(1) The sergeant, listening in, was perplexed: "We obviously have, because I can hear you on the radio.
(2) That police sources were making such claims was confirmed by Taylor's solicitor, who told MPs that a named police sergeant had told him that 6,000 people may have had their phones hacked into.
(3) She speaks at voice level, but the black sergeant who stands in front of her can hear what’s she saying.
(4) An MRF sergeant was acquitted of attempted murder following a trial in 1973.
(5) The military prosecutor, major Rob Stelle, told the court: "Sergeant Gibbs had a charisma, he had a 'follow me' personality.
(6) Joanne Archambault, a retired police sergeant who now trains officers in handling what she calls "one of the most difficult crimes to investigate", said this can be a common reaction.
(7) • Very robust questioning, known as the harsh approach, could be banned – or if not "the approach should not include an analogy with a military drill sergeant".
(8) Who can deny that the west has served as a recruiting sergeant for Islamic extremism, that it effectively helped hand large swathes of Iraq and Libya over to such elements?
(9) Lance Sergeant Darren Shaw, whose daughter was two weeks old when he left for Afghanistan, said the parade would bring closure to the Afghan tour "then we can get ready and move on to what our next tasks are".
(10) Watching Sergeant Wright's patrol in Lashkar Gah was Ghulam Rasul, who has lost count of how old he is.
(11) A 31-year-old sergeant from a specialist riot unit was ordered to secure the police station and escort firefighters.
(12) The court martial centre at Bulford where sergeant Nightingale was tried, is quite unlike any ordinary court of law.
(13) He is largely pushed about by those in charge of him, whether it's the Sergeant-at-Arms, his nurse, or his kindly foster-father Sir Ector.
(14) It's the kind of TV that makes for a wipe-your-weekend-plans box set: the ending of every crack-fix of an episode had me twitchily reaching for the remote to a muttered internal monologue of: "Next one, next one, now, now…" Danes carries the series as the bipolar CIA agent Carrie Mathison, whose furious vigilance is hard to distinguish from pathological mania as she investigates, and ultimately falls for, Sergeant Brody (Damian Lewis), a Marine who may or may not be a terrorist after eight years held captive by al-Qaida.
(15) Inspired by raids carried out by Special Services units on Norway, Italy and France, Sergeant Peter King, a regular soldier and dental clerk orderly, and Private Thomas Leslie Cuthbertson, a trainee dental mechanic, set about their unofficial raid, outlined below.
(16) This is a new initiative from the union that represents NYPD sergeants.
(17) The two dead Israeli soldiers were identified as Captain Yochai Klengel, 25, and Sergeant Dor Nini, 20.
(18) Robert Brown, a former police sergeant, told the Guardian that he pulled out of the recruitment process for the Games after seeing it close at hand.
(19) "One way of reading the contradictory explanations between the sergeant at arms and what the DPP has said is that the police misled her, and I think that's a very serious issue which needs to be looked into," he told Sky News.
(20) "Too many sergeants are constables with stripes," he says.