SMUG'GLE, verb transitive [We probably have the root mug, in hugger mugger.] 1. To import or export secretly goods which are forbidden by the goverment to be imported or exported; or secretly to import or export dutiable goods without paying the duties imposed by law; to run. 2. To convey clandestinely.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI