dawdle vs drop back

dawdle and drop back both are verbs.

Word	Noun	Adjective	Verb	Adverb
dawdle	No	No	Yes	No
drop back	No	No	Yes	No

As verbs, drop back is a hyponym of dawdle; that is, drop back is a word with a more specific, narrower meaning than dawdle:

dawdle: hang (back) or fall (behind) in movement, progress, development, etc.
drop back: to lag or linger behind

Other hyponyms of dawdle include drag, drop behind, get behind, hang back, trail.

dawdle (verb)	drop back (verb)
take one's time; proceed slowly	take position in the rear, as in a military formation or in the line of scrimmage in football
hang (back) or fall (behind) in movement, progress, development, etc.	to lag or linger behind
waste time