take aback vs ball over

take aback and ball over both are verbs.

Word	Noun	Adjective	Verb	Adverb
take aback	No	No	Yes	No
ball over	No	No	Yes	No

As verbs, take aback and ball over are synonyms defined as:

Other synonyms of take aback include blow out of the water, floor, shock.

take aback (verb)	ball over (verb)
surprise greatly; knock someone's socks off	surprise greatly; knock someone's socks off