What does flex mean in Latin?

"Flex" is not a Latin word. It is an English word that originated from the Middle English word "flekchen", which means "to bend or curve".

However, there are some Latin words that relate to the concept of bending or flexing:

* Flectere - to bend, turn, or deflect

* Flexus - bent, curved

* Flexilis - flexible, pliable

Therefore, while "flex" itself is not Latin, the concept is represented by words like "flectere" and "flexilis" in Latin.