salep n.

1736, "drug from starch or jelly made from dried tubers of orchid-like plants," from Turkish salep, from a dialectal pronunciation of Arabic thahleb, which, according to OED, is "taken to be a shortening of khasyu 'th-thahleb orchis (lit. 'fox's testicles' ...)" and it goes on to compare a native English orchid name, dogstones.