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port4

[pawrt, pohrt] /pɔrt, poʊrt/
noun
1.
an opening in the side or other exterior part of a ship for admitting air and light or for taking on cargo.
Compare porthole (def 1).
2.
Machinery. an aperture in the surface of a cylinder, for the passage of steam, air, water, etc.
3.
a small aperture in an armored vehicle, aircraft, or fortification through which a gun can be fired or a camera directed.
4.
Computers. a data connection in a computer to which a peripheral device or a transmission line from a remote terminal can be attached.
5.
the raised center portion on a bit for horses.
6.
Chiefly Scot. a gate or portal, as to a town or fortress.
verb (used with object)
7.
Computers. to create a new version of (an application program) to run on a different hardware platform (sometimes followed by over).
Origin
950
before 950; Middle English, Old English < Latin porta gate; akin to portus port1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for port over

port1

/pɔːt/
noun
1.
a town or place alongside navigable water with facilities for the loading and unloading of ships
2.
Word Origin
Old English, from Latin portus harbour, port

port2

/pɔːt/
noun
1.
Also called (formerly) larboard
  1. the left side of an aircraft or vessel when facing the nose or bow
  2. (as modifier): the port bow Compare starboard (sense 1)
verb
2.
to turn or be turned towards the port
Word Origin
C17: origin uncertain

port3

/pɔːt/
noun
1.
a sweet fortified dessert wine
Word Origin
C17: after Oporto, Portugal, from where it came originally

port4

/pɔːt/
noun
1.
(nautical)
  1. an opening in the side of a ship, fitted with a watertight door, for access to the holds
  2. See porthole (sense 1)
2.
a small opening in a wall, armoured vehicle, etc, for firing through
3.
an aperture, esp one controlled by a valve, by which fluid enters or leaves the cylinder head of an engine, compressor, etc
4.
(electronics) a logic circuit for the input and ouput of data
5.
(mainly Scot) a gate or portal in a town or fortress
Word Origin
Old English, from Latin porta gate

port5

/pɔːt/
verb
1.
(transitive) to carry (a rifle, etc) in a position diagonally across the body with the muzzle near the left shoulder
noun
2.
this position
Word Origin
C14: from Old French, from porter to carry, from Latin portāre

port6

/pɔːt/
verb
1.
(transitive) (computing) to change (programs) from one system to another
Word Origin
C20: probably from port4

port7

/pɔːt/
noun
1.
(Austral) (esp in Queensland) a suitcase or school case
Word Origin
C20: shortened from portmanteau
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for port over

port

n.

"harbor," Old English port "harbor, haven," reinforced by Old French port "harbor, port; mountain pass;" Old English and Old French words both from Latin portus "port, harbor," originally "entrance, passage," figuratively "place of refuge, assylum," from PIE *prtu- "a going, a passage," from root *per- (2) "to lead, pass over" (cf. Sanskrit parayati "carries over;" Greek poros "journey, passage, way," peirein "to pierce, run through;" Latin porta "gate, door," portare "passage," peritus "experienced;" Avestan peretush "passage, ford, bridge;" Armenian hordan "go forward;" Welsh rhyd "ford;" Old Church Slavonic pariti "to fly;" Old English faran "to go, journey," Old Norse fjörðr "inlet, estuary").

Meaning "left side of a ship" (looking forward from the stern) is attested from 1540s, from notion of "the side facing the harbor" (when a ship is docked). It replaced larboard in common usage to avoid confusion with starboard; officially so by Admiralty order of 1844 and U.S. Navy Department notice of 1846. Figurative sense "place of refuge" is attested from early 15c.; phrase any port in a storm first recorded 1749. A port of call (1810) is one paid a scheduled visit by a ship.

"gateway," Old English port "portal, door, gate, entrance," from Old French porte "gate, entrance," from Latin porta "city gate, gate; door, entrance," from PIE root *per- (see port (n.1)). Specific meaning "porthole, opening in the side of a ship" is attested from c.1300.

"bearing, mien," c.1300, from Old French port, from porter "to carry," from Latin portare (see port (n.1)).

type of sweet dark-red wine, 1690s, shortened from Oporto, city in northwest Portugal from which the wine originally was shipped to England; from O Porto "the port;" (see port (n.1)).

v.

"to carry," from Middle French porter, from Latin portare "to carry" (see port (n.1)). Related: Ported; porting.

Online Etymology Dictionary, © 2010 Douglas Harper
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port over in Science
port
  (pôrt)   
  1. An opening, as in a cylinder or valve face, for the passage of steam or fluid.

  2. A place where data can pass into or out of a central processing unit, computer, or peripheral. With central processing units, a port is a fixed set of connections for incoming and outgoing data or instructions. With computers and peripherals, a port is generally a socket into which a connector can be plugged.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Idioms and Phrases with port over
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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