The only free and comprehensive online etymological dictionary of the Spanish language
baile (2) m. (Noun) "bailiff"
Borrowed from Medieval Latin baiulivus 'id.' From Latin baiulus "porter," "steward." Of unknown origin, likely borrowed from a non-Indo-European language with the form *bagjelos "carrier."
Indo-European
Romance
Italian baglio "beam," Romanian baieră "strap"