Meaning

verb give entirely to a specific person, activity, or cause

verb open to public use, as of a highway, park, or building

verb inscribe or address by way of compliment

originFrom Middle English dedicaten (“to dedicate”), from dedicat(e) (“dedicated”, also used as the past participle of dedicaten) + -en (verb-forming suffix), from Latin dēdicātus, the perfect passive participle of dēdicō (“to dedicate, proclaim”), see -ate (verb-forming suffix).

Etymology from Wiktionary, CC BY-SA 3.0