A new invented word or expression is called a Neologism.
About 2 centuries when the British invented and nicknamed the word from a new type of food they called "Gelatin.
the way word human was invented evn the word dog was invented...nobody knows who invented it..
To be perfectly clear and unbiased: there is no such word or name called a Astrolabe in U.S. history, you must be losing your marbles.
The banking system was invented by the Romans , they did their buisness in the market place on bemches called Banco. From this we get the word BANK.
the word was invented in 1841
i would asume that the people who lived there wanted a name for there vcountry and they just called it that.
telephone operators invented the word 'hello'.
A newly invented word is a neologism.
Back in medieval times, burglars for called 'footpads'. A PADlock was invented to keep a footPAD out.
Amy Lee and Ben Moody invented the word "evanescence" from the word "evanesce."
Human brain invented every single word.
The study of where words come from is called etymology. In the case of the word in question, yo, the dictionary shows that the word originated in 1375-1425, the late Middle English period. Yo, as used to say hello, can be dated to 1859. The exact person who invented it is unknown.