Funambulist

Perhaps a preamble is in order. If ambitious funambulists were perambulating in an amphitheater we would not likely be too concerned. However, if they chose to funambulate, the ambience would be more ambiguous especially if they also chose to circumambulate while pushing a pram. You certainly wouldn’t want them to do this while sonambulating. They’d likely need an ambulance.
 
A funambulist is a tightrope walker. The term, from 1793, has its origins in Latin funis (a rope, line, cord) and ambulare (to walk). In ancient times, a funambulist was known as a funambulus.
 
Latin ambulare comes from the Proto-Indo-European (PIE) roots ambhi (around) + el (to go). The English verb ‘to amble’ (to move easily and gently without hard shocks) is from the early 14th century.
 
All of the ‘amb’ and ‘amph’ words in the preamble above are from these PIE and Latin sources. And pram is short for perambulator even though technically speaking, the perambulator is actually the person pushing the pram.
 
Reference: Online Etymological Dictionary, https://www.etymonline.com/
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