Intention

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late Middle English: from Old French entencion, from Latin intentio(n- ) ‘stretching, purpose’, from intendere (see intend).

wiktionary

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From Middle English entencioun, intention, from Old French entencion, from Latin intentio, intentionem. Compare intent.

etymonline

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intention (n.)

late 14c., entencioun, "purpose, design, aim or object; will, wish, desire, that which is intended," from Old French entencion "intent, purpose, aspiration; will; thought" (12c.), from Latin intentionem (nominative intentio) "a stretching out, straining, exertion, effort; attention," noun of action from intendere "to turn one's attention," literally "to stretch out" (see intend). Also in Middle English "emotion, feelings; heart, mind, mental faculties, understanding."