vex vs baffle

vex is not a noun while baffle is a noun.

Word	Noun	Adjective	Verb	Adverb
vex	No	No	Yes	No
baffle	Yes	No	Yes	No

As verbs, vex and baffle are synonyms defined as:

vex (noun)	baffle (noun)
	a flat plate that controls or directs the flow of fluid or energy

vex (verb)	baffle (verb)
be a mystery or bewildering to	restrain the emission of (sound, fluid, etc.)
subject to prolonged examination, discussion, or deliberation	be a mystery or bewildering to
change the arrangement or position of	hinder or prevent (the efforts, plans, or desires) of
cause annoyance in; disturb, especially by minor irritations
disturb the peace of mind of; afflict with mental agitation or distress