prepare vs concoct

prepare and concoct both are verbs.

Word	Noun	Adjective	Verb	Adverb
prepare	No	No	Yes	No
concoct	No	No	Yes	No

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

prepare (verb)	concoct (verb)
make ready or suitable or equip in advance for a particular purpose or for some use, event, etc	make a concoction (of) by mixing
undergo training or instruction in preparation for a particular role, function, or profession	devise or invent
create by training and teaching	prepare or cook by mixing ingredients
arrange by systematic planning and united effort	invent
prepare for eating by applying heat
to prepare verbally, either for written or spoken delivery
lead up to and soften by sounding the dissonant note in it as a consonant note in the preceding chord
educate for a future role or function