What is a stringed instrument of music resembling the lute or the violin, but larger, and having six strings, three of silk covered with silver wire, and three of catgut, -- played upon with the fingers called?

guitar — A stringed instrument of music resembling the lute or the violin, but larger, and having six strings, three of silk covered with silver wire, and three of catgut, -- played upon with the fingers. (Webster's 1913.)