торгох (torgox, “to fine, to fasten”) + -ууль (-uulʹ), compare Kalmyk торһуль (torğulĭ, “detention, obstacle”).
торгууль • (torguulʹ) (Mongolian spelling ᠲᠣᠷᠭᠠᠭᠤᠯᠢ (torɣaɣuli))