In a way that states something as a definite fact without needing proof or evidence.
From assertory (adjective) + -ically (adverbial suffix). Assertory comes from Latin assertor (one who claims or maintains), derived from asserere (to claim or assert). The suffix -ical adds the meaning of manner or method.
This word captures a specific kind of boldness—it's not just claiming something, but claiming it with total confidence as if it were already proven fact. Medieval logicians used assertoric statements to distinguish between what's definitely true versus what's merely possible.
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