bog down vs slow up

bog down and slow up both are verbs.

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

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

Other hypernyms of bog down include slow, slow down.

bog down (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
be unable to move further	become slow or slower
cause to get stuck as if in a mire