Jettison vs. Jetsam

Can you differentiate between Jettison and Jetsam?
Do you know which one is verb, and which one is noun?
If you don't know about them, this post is for you.



Quick Look

Jettison means to throw something out of ship, or to reject an object, an idea, a plan, any other things that are not needed.
Jetsam is the floating things that are thrown away from a ship at sea.
Jettison  vs. jetsam, flotsam, jetsam and flotsam, lagan


    What is the meaning of Jettison?

    The verb Jettison means to throw or drop something out of a moving ship, airplane, etc.
    • The pilot jettisoned the luggage of passengers and made a safe landing.
    • The captain gave orders to jettison the cargo from the ship.
    To jettison an idea, a plan, etc. means one intentionally rejects it, and decide not to use it.
    Discard, and abandon are its Synonyms.
    • The iPhone jettison the curved edges of its frame for flat, sharp edges.
    • Air France decided to jettison 1500 jobs by 2022

    What is the meaning of Jetsam?

    Jetsam is jettisoned goods. Goods that are thrown away especially from a moving ship or airplane.
    Wreckage of a ship floating in the water is also called jetsam.


    Origin of Jettison and Jetsam

    According to Merriam-Webster:
    Jettison comes from the Anglo-French noun geteson, meaning "action of throwing," and is ultimately from the Latin verb jactare, meaning "to throw." The noun jettison ("a voluntary sacrifice of cargo to lighten a ship's load in time of distress") entered English in the 15th century; the verb has been with us since the 19th century. The noun is also the source of the word jetsam ("jettisoned goods"), which is often paired with flotsam ("floating wreckage"). "These days you don't have to be on a sinking ship to jettison something." In addition to literally "throwing overboard," jettison means simply "to get rid of." You might jettison some old magazines that are cluttering your house, or you might make a plan but jettison it at the last minute.

    What is the difference between Jettison and Jetsam?

    Jettison is a verb.
    Jetsam is a noun.

    Jettison origins from Latin jactare or jacere means to throw. Jet, a plane, or stream of water, is also origin from the same root.
    As it origin suggests throwing out, jettison means to throw something.
    And, jetsam means something that is thrown.

    What Harper Dictionary of Contemporary Usage says:
    Jettison originally had the meaning of deliberately discarding cargo by throwing it overboard as a desperate effort to save a ship in danger of wreck. The cargo thus discarded came to be called jetsam. In recent years jettison has acquired the extended meaning of any kind of discarding or abandonment of objects, persons, or ideas: "Plans for a new playground were jettisoned by the council's refusal to appropriate needed fund."
    According to National Ocean Service:
    Flotsam is defined as debris in the water that was not deliberately thrown overboard, often as a result from a shipwreck or accident. 
    Jetsam describes debris that was deliberately thrown overboard by a crew of a ship in distress, most often to lighten the ship's load.



    Do Flotsam and Jetsam mean the same thing?

    These days, Flotsam, and Jetsam are used as synonyms. 
    But, many dictionaries suggest that they are not synonyms, and used in different contexts.
    What Harper Dictionary of Contemporary Usage says:
    The word flotsam is used in maritime law to describe goods swept from a vessel and found floating in the sea. Jetsam refers to cargo deliberately thrown overboard (or jettisoned) when a ship is in imminent danger of wreck, especially goods which sink and remain under water. Flotsam and jetsam is often loosely used to refer to wreckage either floating or washed up on shore. By further extension, it now means chronically unemployed people, vagrants, and drifters, who are regarded as the flotsam and jetsam of the social order.

    Important point:
    Jetsam  is spelled J.e.t.s.a.m--not "jetsom" .
    Jetsam and flotsam are mass nouns. Thus they are uncountable.
    These words are always used with a singular verb.

    The phrase "flotsam and jetsam" means useless or discarded objects, and is often used together in a sentence:
    • Flotsam and jetsam from the storm are displayed as art in their own right, including lengths of weathered nautical rope and fishing line that she plucked from New Jersey beaches after the storm.               Seattle Times Oct 27, 2019
    • Dusty teapots are set atop a transom, and multiple shelves overflow with a flotsam and jetsam of board games, cards, puzzles and crayons.                       Seattle Times Oct 29, 2019
    • Alexander Dodge’s set, a jaunty playground of flotsam and jetsam, is strewn with cinema seats in a production that revels in the open theatricality of the play.         Los Angeles Times Jun 26, 2018
    • Hanjin’s demise just adds to the flotsam and jetsam already washing up on the shores of the shipping industry.     Wall Street Journal Sep 2, 2016 

    What do you mean by Lagan?
    The things that sinks to the bottom of the ocean is known as lagan.
    Flotsam and jetsam float over the ocean, but lagan sits on the ocean floor.
    Lagan are those goods thrown into the sea with a buoy attached so that they may be found again.

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