What does Boxing Day have to do with boxing?
late 14c., from Latin inductus, past participle of inducere "to lead" (see induce). Originally of church offices; sense of "bring into military service" is 1934 in American English. Related: Inducted; inducting.
induct in·duct (ĭn-dŭkt')
v. in·duct·ed, in·duct·ing, in·ducts
To produce an electric current or a magnetic charge by induction.