Complex sentence: The union thus effected was adroitly exploited, with a view to win over Pope Honorius I to Monothelism; otherwise it proved ineffective, and soon fell into discredit under the name of "enoosis hydrobatès", contemptuously called the "washy union".
Split into simpler sentences: The union thus effected was adroitly exploited, with a view to win over Pope Honorius I to Monothelism. This compromise proved ineffective, and soon fell into discredit under the name of "enoosis hydrobatès", contemptuously called the "washy union".