The word "guitar" was adopted into English from Spanish word "guitarra" in the 1600s. In the Middle Ages the word "gitter" or "gittern" was used in England. Both "guitarra" and "gitter" came from the Latin word "cithara". The word "cithara" came from the earlier Greek word "kithara". "Kithara" could have come from the Persian word "sehtār". "seh" meaning "three" and "tār" meaning "string". There is also a similar but two-stringed Persian instrument named "dotār". "do" means "two" in Persian. The Indian sitar instrument was named after the Persian "sehtār". The sihtar itself is related to the Indian instrument, the sitar.