originator

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

From originate + -or.

Salvator was, indeed, the originator of that affair. — The Extraordinary Adventures of Arsène Lupin, Gentleman-Burglar, Maurice Leblanc
He was the originator of tall monuments—shot-towers—lightning-rods—Lombardy poplars. — The Works of Edgar Allan Poe, The Raven Edition: Table Of Contents And Index Of The Five Volumes, Edgar Allan Poe
The originators of the national convention were the Antimasons. — A School History of the United States, John Bach McMaster

conceiver, mastermind

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