moderator


moderator
moderator (n.) late 14c., "ruler, governor," from L. moderator "manager, ruler, director," lit. "he who moderates," from moderatus (see MODERATE (Cf. moderate) (adj.)). Meaning "one who acts as an umpire" is from 1560s. Fem. form moderatrix attested from 1530s.

Etymology dictionary. 2014.

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