funambulist (n.)

"tightrope-walker," 1793, coined from Latin funis "a rope, line, cord," + ambulare "to walk" (see amble (v.)). Earlier was funambulant (1660s), funambule (1690s from Latin funambulus, the classical name for a performer of this ancient type of public entertainment), and pseudo-Italian funambulo (c. 1600). Related: Funambulate; funambulation; funambulatory.