adjective see: double Date: 15th century having two elements, 2. marked by two or a multiple of two beats per measure of music , consisting of a meter based on disyllabic feet
DUPLE
Meaning of DUPLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012