lock

"Give me the key," said my mother; and though the lock was very stiff, she had turned it and thrown back the lid in a twinkling.

1881–1882, Robert Louis Stevenson, Treasure Island, London; Paris: Cassell & Company, published 14 November 1883, →OCLC:

We tiptoed into the house, up the stairs and along the hall into the room where the Professor had been spending so much of his time. 'Twas locked, of course, but the Deacon man got a big bunch of keys out of his pocket and commenced to putter with the lock.

1913, Joseph C[rosby] Lincoln, chapter XIII, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC:

Something used for fastening, which can only be opened with a key or combination.

[T]he application must first acquire a lock on a file or a portion of a file before reading data and modifying it.

2005, Karl Kopper, The Linux Enterprise Cluster:

(computing, by extension) A mutex or other token restricting access to a resource.

Here the canal came to a check, ending abruptly with a large lock.

1846, William Makepeace Thackeray, Notes of a Journey from Cornhill to Grand Cairo:

A segment of a canal or other waterway enclosed by gates, used for raising and lowering boats between levels.

"I never saw such a gun in my life," replied poor Winkle, looking at the lock, as if that would do any good.

1836 March – 1837 October, Charles Dickens, “(please specify the chapter name)”, in The Posthumous Papers of the Pickwick Club, London: Chapman and Hall, […], published 1837, →OCLC:

Even though he had not yet done so, Jack felt he had a lock on the game.

2003, Charley Rosen, The Wizard of Odds:

Brian thinks she's a lock to get a scholarship somewhere.

Ashton only had to wait three minutes for his second try, lock Louis Deacon setting it up with a rollocking line-break, before Romania got on the scoreboard courtesy of a penalty from fly-half Marin Danut Dumbrava.

2011 September 24, Ben Dirs, “Rugby World Cup 2011: England 67-3 Romania”, in BBC Sport:

(rugby) A player in the scrum behind the front row, usually the tallest members of the team.

[O]n may of his lecture days I have seen all Albemarle Street closed by a "lock" of carriages, filled with women of distinction, until the servants of the Institution or their own footmen advanced to the carriage-doors with the intelligence that Mr. Coleridge had been suddenly taken ill.

1834 September–November; 1835 January, Thomas De Quincey, “Samuel Taylor Coleridge”, in Autobiographic Sketches: With Recollections of the Lakes (De Quincey’s Works; II), London: James Hogg & Sons, →OCLC, page 207:

A fastening together or interlacing; a closing of one thing upon another; a state of being fixed or immovable.

Sergestus, eager with his beak to press / Betwixt the rival galley and the rock, / Shuts up the unwieldy Centaur in the lock

1697, Virgil, “The Fifth Book of the Æneis”, in John Dryden, transl., The Works of Virgil: Containing His Pastorals, Georgics, and Æneis. […], London: […] Jacob Tonson, […], →OCLC:

A place impossible to get out of, as by a lock.

A device for keeping a wheel from turning.

They must be also practis'd in all the Locks and Gripes of Wrestling

[1644], [John Milton], Of Education. To Master Samuel Hartlib, [London: […] Thomas Underhill and/or Thomas Johnson], →OCLC:

Tok Pisin: lok

→ Hawaiian: laka

slot

a player in the second row of the scrum in Rugby

From Middle English lok, from Old English loc, from Proto-West Germanic *lok, from Proto-Germanic *luką from Proto-Indo-European *lewg- (“to bend; turn”).
The verb is from Middle English locken, lokken, louken, from Old English lūcan, Proto-West Germanic *lūkan, from Proto-Germanic *lūkaną. Related to luxe via Latin.


lock

If you put the brakes on too hard, the wheels will lock.

(intransitive) To become fastened in place.

Remember to lock the door when you leave.

This door locks with a key.

(intransitive) To be capable of becoming fastened in place.

with his hands locked behind his back

We locked arms and stepped out into the night.

a pop and lock routine

(intransitive, break dancing) To freeze one's body or a part thereof in place.

To seize (e.g. the sword arm of an antagonist) by turning one's left arm around it, to disarm them.

(Internet, transitive) To modify (a thread) so that users cannot make new posts in it.

Frequently-vandalized pages are generally locked to prevent further damage.

(Internet, wiki jargon, transitive) To prevent a page from being edited by other users.

Please don't disappoint me - you are female, aren't you? I have a lingering suspicion that you are 17 stone and lock for Tarankai.

1980, Ken Berry, chapter 14, in First Offender, Auckland: Collins, page 117:

(intransitive, rugby) To play in the position of lock.

en-verb

lock (third-person singular simple present locks, present participle locking, simple past locked, past participle locked or (obsolete) locken)

locks (present singular third-person)
locking (participle present)
locked (past)
locked (participle past)
locken (obsolete participle past)

unlock

antonym(s) of “to fasten with a lock, to be capable of becoming fastened in place”

lock the stable door after the horse has been stolen

lock the stable door after the horse has bolted

lukita

break dancing: to freeze one's body or a part thereof in place

заключвам

(internet) to stop others contributing to a thread, etc.


lock

Baſſ. […]Nor is the wide world ignorant of her worth,
 For the foure windes blow in from euery coaſt
 Renowned ſutors, and her ſunny locks
 Hang on her temples like a golden fleece,
 Which makes her ſeat of Belmont Cholchos-'| ſtrond,
 And many Iaſons come in queſt of her.

c. 1596–1598 (date written), William Shakespeare, “The Merchant of Venice”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene i], page 164:

If I consent to burn them, will you promise faithfully neither to send nor receive a letter again, nor a book (for I perceive you have sent him books), nor locks of hair, nor rings, nor playthings?

1847 December, Ellis Bell [pseudonym; Emily Brontë], Wuthering Heights: […], volume (please specify |volume=I or II), London: Thomas Cautley Newby, […], →OCLC:

(Scots law, historical) A quantity of meal, the perquisite of a mill-servant.

From Middle English lok, lokke, from Old English locc (“hair of the head, hair, lock of hair, curl, ringlet”), from Proto-West Germanic *lokk, from Proto-Germanic *lukkaz, from Proto-Indo-European *lugnó-, from Proto-Indo-European *lewg- (“to bend”).
Cognate with West Frisian lok, lokke, Dutch lok (“earlock, curl”), German Locke (“lock of hair, curl”), Danish lok, Swedish lock (“lock of hair, curl”). It has been theorised that the word may be related to the Gothic verb *𐌻𐌿𐌺𐌰𐌽 (*lukan, “to shut”) in its ancient meaning "to curb".