rĕ-tūro — Lewis & Short
rĕ-tūro, āre, v. a.turo, whence also obturo,
I to open, unstop (only in the two foll. passages): obscenis verbis novae nuptae aures returare, Varr. ap. Non. 167, 6:
ora coarticulare mutorum, surdorum auriculas returare,Arn. 1, 31.