Ketchup is the sweet red sauce that goes on fries. A bottle of ketchup, tomato ketchup, squeeze the ketchup.
It is a non-Newtonian fluid, which is why it will not pour and then comes out all at once — shaking or tapping thins it briefly. The original had no tomato in it at all: the word probably comes from a fermented fish sauce of southern China, by way of Malay.
1nounketchupA sweet red tomato sauce.
“The kids wanted ketchup on everything, even their scrambled eggs.”
Patterntomato ketchup · a bottle / squeeze / dollop of ketchup · chips with ketchup · ketchup on + noun
ketchup is a sauce.
It probably began as a fish sauce in the Far East, and the word came with it. Only later did it turn into the sweet red sauce we put on chips.
hooks ontofish
Ketchup probably comes from a southern Chinese name for a fermented fish sauce, by way of Malay kecap.
nan-hbl
膎汁 — fish sauce
Malay
kecap
English, today
ketchup
Borrowed from Malay kecap. unknown, but probably ultimately from nan-hbl 膎汁 (“fish sauce”) via Malay kecap ~ kicap “any dark clear sauce from soy, fish etc”, though the precise path is unclear – there are related words in various Chinese languages. Various other theories exist – see Ketchup: Etymology for extended discussion. First appeared in English in the late 17th century in reference to a Southeast Asian sauce encountered by British traders and sailors. The Oxford English Dictionary notes that it was commonly used in the 18th century to refer to a variety of similar sauces with varying ingredients—"anchovies, mushrooms, walnuts, and oysters being particularly popular"—but by the late 19th century the current tomato ketchup became the most popular form.
Etymology from Wiktionary, CC BY-SA