sissonne

[ si-son, -sohn; French see-sawn ]
/ sɪˈsɒn, -ˈsoʊn; French siˈsɔn /

noun, plural sis·sonnes [si-sonz, -sohnz; French see-sawn] /sɪˈsɒnz, -ˈsoʊnz; French siˈsɔn/. Ballet.

a jump in which the dancer lands on one foot, with the other extended to the back, front, or side.

Origin of sissonne

First recorded in 1700–10; named after the Comte de Sissonne, 17th-century French noble, said to have invented it