motif vs topos

motif and topos both are nouns.

Word	Noun	Adjective	Verb	Adverb
motif	Yes	No	No	No
topos	Yes	No	No	No

As nouns, topos is a hyponym of motif; that is, topos is a word with a more specific, narrower meaning than motif:

motif: a unifying idea that is a recurrent element in literary or artistic work
topos: a traditional theme or motif or literary convention

motif (noun)	topos (noun)
a design or figure that consists of recurring shapes or colors, as in architecture or decoration	a traditional theme or motif or literary convention
a unifying idea that is a recurrent element in literary or artistic work
a theme that is repeated or elaborated in a piece of music