motel vs motor inn

motel and motor inn both are nouns.

Word	Noun	Adjective	Verb	Adverb
motel	Yes	No	No	No
motor inn	Yes	No	No	No

As nouns, motor inn is a hypernym of motel; that is, motor inn is a word with a broader meaning than motel:

motel: a motor hotel
motor inn: a hotel for motorists; provides direct access from rooms to parking area

Other hypernyms of motel include court, motor hotel, motor lodge, tourist court.

motel (noun)	motor inn (noun)
a motor hotel	a hotel for motorists; provides direct access from rooms to parking area