Lewis Short
(verb) : cuncto, āre, 1, (ante-class. collat. form of cunctor)
* To delay, hesitate, Enn. ap. Non. p. 469, 27 (Com. Rel. v. 3 Vahl.): cunctas? intus alii festinant,Plaut. Cas. 4, 2, 13: cunctant subferre laborem, Att. ap. Non. p. 469, 24 (Trag. Rel. v. 72 Rib.).
Charlton T. Lewis, Charles Short, A Latin Dictionary