bog vs slow up

bog is a noun but slow up is not a noun.

Word	Noun	Adjective	Verb	Adverb
bog	Yes	No	Yes	No
slow up	No	No	Yes	No

As verbs, slow up is a hypernym of bog; that is, slow up is a word with a broader meaning than bog:

Other hypernyms of bog include slow, slow down.

bog (noun)	slow up (noun)
wet spongy ground of decomposing vegetation; has poorer drainage than a swamp; soil is unfit for cultivation but can be cut and dried and used for fuel

bog (verb)	slow up (verb)
cause to slow down or get stuck	lose velocity; move more slowly
get stuck while doing something	cause to proceed more slowly
	become slow or slower