Englishlag
verb
Elizabeth had not walked over to the villa with the other guests, but lagged behind:
fall behind, straggle, fall back, trail (behind), linger, dally, dawdle, hang back, delay, move slowly, loiter, drag one's feet, take one's time, not keep pace, idle, dither, saunter, bring up the rear;
informal dilly-dally, shilly-shally;
archaic or literary tarry.
▷antonyms lead; keep up; hurry.