stop over vs lay over

stop over and lay over both are verbs.

Word	Noun	Adjective	Verb	Adverb
stop over	No	No	Yes	No
lay over	No	No	Yes	No

As verbs, lay over is a hyponym of stop over; that is, lay over is a word with a more specific, narrower meaning than stop over:

Other hyponyms of stop over include call, stop over.

As verbs, stop over and lay over are synonyms defined as:

stop over and lay over: interrupt a journey temporarily, e.g., overnight

stop over (verb)	lay over (verb)
interrupt a trip	place on top of
interrupt a journey temporarily, e.g., overnight	interrupt a journey temporarily, e.g., overnight