contrary: [14] Contrary originated as a Latin adjectival formation based on the preposition contrā ‘against’, which historically was a derivative of com or cum ‘with’. Latin contrārius passed into English via Old French contraire and Anglo-Norman contrarie. Originally contrary was pronounced with the main stress on its middle syllable, but this survives only in the sense ‘obstinately self-willed’; from the 18th century onwards, the stress has usually been placed on the first syllable. [contrary etymology, contrary origin, 英语词源]