crook vs recurve

crook is a noun but recurve is not a noun.

Word	Noun	Adjective	Verb	Adverb
crook	Yes	No	Yes	No
recurve	No	No	Yes	No

As verbs, recurve is a hyponym of crook; that is, recurve is a word with a more specific, narrower meaning than crook:

crook (noun)	recurve (noun)
a long staff with one end being hook shaped
someone who has committed a crime or has been legally convicted of a crime
a circular segment of a curve

crook (verb)	recurve (verb)
bend or cause to bend	curve or bend (something) back or down