Objection

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late Middle English: from Old French, or from late Latin objectio(n- ), from the verb obicere (see object).

wiktionary

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From Middle French objection, from Old French objeccion, from Latin obiectio

etymonline

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objection (n.)

late 14c., objeccioun, "argument against the validity of a proposition or line of reasoning," from Old French objeccion "reply, retort" (12c.) and directly from Late Latin obiectionem (nominative obiectio), "a throwing or putting before" (in Medieval Latin "an objection"), noun of action from past-participle stem of Latin obicere "to oppose" (see object (n.)).