Ultimately from Latin dedicator, either directly to English from Latin or by way of a Romance cognate.

• (UK) IPA^(key): /ˈdɛdɪˌkeɪtə(ɹ)/

dedicator (plural dedicators)

1. One who dedicates.

   Coordinate term: dedicatee

• (Classical Latin) IPA^(key): [deː.dɪˈkaː.tɔr]
• (modern Italianate Ecclesiastical) IPA^(key): [de.diˈkaː.tor]

From dēdicō (“dedicate, proclaim”) +‎ -tor (“-er”, agent suffix).

dēdicātor m (genitive dēdicātōris); third declension

1. one who dedicates
2. a founder, author

Third-declension noun.

Inflected form of dēdicō.

dēdicātor

1. second/third-person singular future passive imperative of dēdicō

• “dedicator”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “dedicator”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.