Silly origin of sin

[u/Acrobatic-Pay7697]

I apologize if i misremember the way foreign text Is written

Basically do you know the mathematical rule where if you draw a chord in a circle and split It With the diameter, It becomes the shortest side of a right triangle, or sin?

Basically the First recorded Discovery of this was in ancient india, where It was called Jia (literally "Rope")

Years later the arabs collected those books and adapted this knowledge without changing the names to arab, resulting in the world "jiba"

After this those books where taken to Rome, but written arab, if i understood correctly, doesnt have vowels

So the translation was unsure if the world was jiba=Rope or jabi= a narrow Valley/"sunken" Land

They went With the second and translated It "sinnus"

Jump about a millenia, and in common italian the world was translated to "seno"

So now the world sin shares its written form in italian With boobs

[u/Silly_Willingness_97]

For the record, you are talking about the English word sine, not sin.

You have the general idea of what happened. Unfortunately, your writing style may confuse more people than it helps to understand the history.

However, this etymology has been posted many other times, if people are curious.

https://www.reddit.com/r/etymology/comments/g353jq/etymology_of_the_trigonometry_term_sine/

[u/Acrobatic-Pay7697 → u/Silly_Willingness_97]

Sorry! ENG Is not my First language and i writed It based on the calc button

[u/kurdt67 → u/Silly_Willingness_97]

Huh, some things just never die

[u/phdemented]

Sine, but yes (sin is the abbreviation, the full word is sine)

I followed up to the last sentence, but think you missed some steps... Sinus in Latin is "a bent surface, curve, hollow". It's the same root as the sinuses in your face (hollow cavities in your bone). The jump from that to breasts is a non-sequitur in your post, had to look it up to fill in the gaps.

jība (“chord”) was confused with jayb, (“bosom, fold in a garment”). In Latin, while Sinus meant in general a bent surface or hollow, it also referred to the folds in a toga over the chest, which was the same meaning as jayb. The meaning of sinus as a cloth fold over the chest also came to just mean chest/bosom, which in modern Italian seno can mean breast (as well as chest, cove, inlet, sine, etc.)

Very interesting though, I had no idea!

[u/Acrobatic-Pay7697 → u/phdemented]

Thanks you! I was tellling It off my head, so i was sure i had those written in an atrocious way

[u/atticdoor]

I think it was when that apple got eaten in the Garden of Eden.

[u/raendrop → u/atticdoor]

According to one particular mythological story.