Emily Dickinson Lexicon

REV'EL, v.i. [D. revelen, to rave, from the root of L. rabo, rabio, to rage, whence rabies, rabid; Dan. raaben, to bawl, to clamor; Sw. ropa; allied to rove, rapio; Ir. rioboid, a spendthrift; rioboidim, to riot or revel.]

1. To feast with loose and clamorous merriment; to carouse; to act the bacchanalian. Antony, that revels long o' nights. – Shak.
2. To move playfully or without regularity.