hesitate vs dwell on

hesitate and dwell on both are verbs.

Word	Noun	Adjective	Verb	Adverb
hesitate	No	No	Yes	No
dwell on	No	No	Yes	No

As verbs, dwell on is a hyponym of hesitate; that is, dwell on is a word with a more specific, narrower meaning than hesitate:

Other hyponyms of hesitate include linger over, boggle, hover, linger, hover, oscillate, vacillate, vibrate, falter, waver.

hesitate (verb)	dwell on (verb)
pause or hold back in uncertainty or unwillingness	delay
interrupt temporarily an activity before continuing