waver vs boggle

waver is a noun but boggle is not a noun.

Word	Noun	Adjective	Verb	Adverb
waver	Yes	No	Yes	No
boggle	No	No	Yes	No

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

Other hyponyms of waver include dwell on, linger over, hover, linger, hover, oscillate, vacillate, vibrate, falter, waver.

waver (noun)	boggle (noun)
the act of moving back and forth
the act of pausing uncertainly
someone who communicates by waving

waver (verb)	boggle (verb)
give off unsteady sounds, alternating in amplitude or frequency	overcome with amazement
sway from side to side	startle with amazement or fear
move or sway in a rising and falling or wavelike pattern	hesitate when confronted with a problem, or when in doubt or fear
move back and forth very rapidly
move hesitatingly, as if about to give way
pause or hold back in uncertainty or unwillingness
be unsure or weak