Answer:
The first use of the idea of 'sine' in the way we use it today was in the work Aryabhativam by Aryabhata, in AD 500. Aryabhata used the word ardha-jya for the half-chord, which was shortened to jya or jiva in due course. When the Aryabhatiyam was translated into Arabic, the word jiva was retained as it is. The word jiva was translated into sinus, which means curve, when the Arabic version was translated into Latin, Soon the word sinus, also used as sine, became common in mathematical texts throughout Europe.