The term 'Ancient Harp' refers to a variety of stringed instruments from antiquity. The crossword solutions for this term include Trigon (6 letters), LYRE (4 letters), Cithara (7 letters), Lyres (5 letters), AEOLIAN (7 letters), and Arpa (4 letters). The Trigon is an ancient Greek instrument with three strings, the LYRE is a harp-like instrument from Ancient Greece, the Cithara is a larger version of the LYRE, Lyres is the plural form of LYRE, the AEOLIAN is a type of harp from Ancient Greece, and the Arpa is a Spanish version of the harp.