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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
First attested in 1529; Borrowed from Latin īnsinuātus, perfect passive participle of īnsinuō (“to push in, creep in, steal in”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from in- (“in”) + sinus (“a winding, bend, bay, fold, bosom”) -ō (verb-forming suffix). Regular participial usage of the adjective up until Early Modern English.
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tap / space
Classic usage
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