Does anyone know the origin of the expression 24/7 which means 24 hours a day, 7 days a week?
Looking for the origin of the word RAGE
24/7: I trace it to the US during the mid-1980's, but haven't found a particular, originating source. The omission of the unit ratios (hours per day and days per week) is not particularly unusual, especially when the values themselves are so recognizable (to what else would 24 and 7 refer?) and the units themselves are as common as hours, days, and weeks. Also, since "24 hours a day, 7 days a week" had been a cliché in advertising for decades prior, this contraction could arise, spontaneously, in a number of different times and places.

There are some numeric codes that gained prominance during this era, such as the degree measurements, "180" (for the opposite), "360" (for all the way), and "720." I suspect that some number codes alludes to use with pagers, in which a message would be sent to one's beeper in the form of numbers (instead of a return phone number to call). For example, "66" for travel, "007" for secret, etc.. There are quite a few arose during this period, such as the police codes "211" for armed robbery, "187" for murder. "420" for marijuana also came about during this time. To find a specific origin for "247" for always I would look to hip-hop songs of the time.

rage: "rage" comes from the Sanskrit, rabhas, for "violence," by way of the Latin, rabere, for "to be mad," and rabies, for "madness."

Lord Glenelg
rage comes from Latin, but Latin didn't get it from Sanskrit. For that matter, it's very unlikely that any Latin words come from Sanskrit.

The Sanskrit word appears in the dictionary etymology as a cognate, as indicated by the phrase akin to.

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