From Middle English lok, from Old English loc, from Proto-Germanic *luką. The verb is from Middle English locken, lokken, louken, from Old English lūcan, from Proto-Germanic *lūkaną. Doublet of luxe.
lock (plural locks)
- Something used for fastening, which can only be opened with a key or combination.
- (computing, by extension) A mutex or other token restricting access to a resource.
- A segment of a canal or other waterway enclosed by gates, used for raising and lowering boats between levels.
- (firearms) The firing mechanism.
- Complete control over a situation.
- Something sure to be a success.
- (rugby) A player in the scrum behind the front row, usually the tallest members of the team.
- A fastening together or interlacing; a closing of one thing upon another; a state of being fixed or immovable.
- A place from which egress is prevented, as by a lock.
- A device for keeping a wheel from turning.
- A grapple in wrestling.
lock (third-person singular simple present locks, present participle locking, simple past locked, past participle locked or (obsolete) locken)
- (intransitive) To become fastened in place.
- (transitive) To fasten with a lock.
- (intransitive) To be capable of becoming fastened in place.
- (transitive) To intertwine or dovetail.
- (intransitive, break dancing) To freeze one's body or a part thereof in place.
- To furnish (a canal) with locks.
- To raise or lower (a boat) in a lock.
- To seize (e.g. the sword arm of an antagonist) by turning the left arm around it, to disarm him.
- (Internet, transitive) To officially prevent other users from posting in (a thread).
From Middle English lok, lokke, from Old English locc, from Proto-Germanic *lukkaz, from Proto-Indo-European *lugnó-, from Proto-Indo-European *lewg- (“to bend”). Cognate with Old Norse lokkr (whence Danish lok), German Locke. It has been theorised that the word may be related to the Gothic verb *????? (*lukan, “to shut”) in its ancient meaning to curb.
lock (plural locks)
- A tuft or length of hair, wool etc.
- A small quantity of straw etc.
- (Scotland, law, historical) A quantity of meal, the perquisite of a mill-servant.