Merriam-Webster's Collegiate® Dictionary, 11th Edition
HOSTEL
I. noun
Etymology: Middle English, from Anglo-French, from Medieval Latin hospitale hospice
Date: 14th century
inn ,
2. a supervised institutional residence, a supervised lodging for usually young travelers,
II. intransitive verb (-teled or -telled; -teling or -telling)
Date: 14th century
to stay at hostels overnight in the course of traveling