hostelry vs hostel

hostelry and hostel both are nouns.

Word	Noun	Adjective	Verb	Adverb
hostelry	Yes	No	No	No
hostel	Yes	No	No	No

As nouns, hostelry and hostel are synonyms defined as:

Other synonyms of hostelry include auberge, inn, lodge.

hostelry (noun)	hostel (noun)
a hotel providing overnight lodging for travelers	inexpensive supervised lodging (especially for youths on bicycling trips)
	a hotel providing overnight lodging for travelers