take aback vs galvanise

take aback and galvanise both are verbs.

Word	Noun	Adjective	Verb	Adverb
take aback	No	No	Yes	No
galvanise	No	No	Yes	No

As verbs, galvanise is a hyponym of take aback; that is, galvanise is a word with a more specific, narrower meaning than take aback:

Other hyponyms of take aback include galvanize, startle.

take aback (verb)	galvanise (verb)
surprise greatly; knock someone's socks off	stimulate (muscles) by administering a shock
	cover with zinc
	to stimulate to action