hotelyoudaoicibaDictYouDict[hotel 词源字典]
hotel: [17] Ultimately, hotel and hospital are the same word, but they have diverged widely over the centuries. Both go back to medieval Latin hospitāle ‘place where guests are received, hospice’, but this developed in two different ways in Old French. One branch led with little change to English hospital, but a reduced form hostel also emerged (borrowed by English as hostel [13]).

Its modern French descendant is hôtel, from which English gets hotel (originally used in the sense ‘large residence’, as in the French hôtel de ville ‘town hall’, but since the 18th century increasingly restricted to its present-day sense). Other contributions made to English by Old French hostel are the derivatives hostelry [14] and ostler [13], originally (as hosteler) ‘someone who receives guests’ but since the 14th century used for someone who looks after horses at an inn.
=> hospital, host, hostel, hostelry, ostler[hotel etymology, hotel origin, 英语词源]
hotel (n.)youdaoicibaDictYouDict
1640s, "public official residence," from French hôtel, Old French hostel "a lodging" (11c.), from Medieval Latin hospitale "inn" (see hostel). Modern sense of "an inn of the better sort" is first recorded 1765.