1375-1425;late Middle English (v. and adj.) < Latindēdicātus past participle of dēdicāre to declare, devote, equivalent to dē-de- + dicāre to indicate, consecrate, akin to dīcere to say, speak (see dictate)
overdedicate, verb (used with object), overdedicated, overdedicating.
prededicate, verb (used with object), prededicated, prededicating.
rededicate, verb (used with object), rededicated, rededicating.
early 15c. (of churches), from Latin dedicatus, past participle of dedicare "consecrate, proclaim, affirm, set apart," from de- "away" (see de-) + dicare "proclaim," from stem of dicere "to speak, to say" (see diction). Dedicated "devoted to one's aims or vocation" is first attested 1944.