Word History First Known Use 1610, in the meaning defined at transitive sense Time Traveler The first known use of ideate was in 1610 See more words from the same year Rhymes for ideate abdicate abrogate acetate activate actuate adsorbate aggravate agitate alginate alienate ...
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"imagine, form ideas," from idea + -ate (2). From 1862 as "to think." Related: Ideated;… See origin and meaning of ideate.