baulk vs straitjacket

baulk and straitjacket both are nouns.

Word	Noun	Adjective	Verb	Adverb
baulk	Yes	No	Yes	No
straitjacket	Yes	No	No	No

As nouns, straitjacket is a hyponym of baulk; that is, straitjacket is a word with a more specific, narrower meaning than baulk:

baulk: something immaterial that interferes with or delays action or progress
straitjacket: anything immaterial that severely hinders or confines

Other hyponyms of baulk include albatross, millstone, bind, diriment impediment, drag, obstacle, obstruction.

baulk (noun)	straitjacket (noun)
one of several parallel sloping beams that support a roof	a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person
something immaterial that interferes with or delays action or progress	anything immaterial that severely hinders or confines
the area on a billiard table behind the balkline

baulk (verb)	straitjacket (verb)
refuse to comply