4. ὄψῃ has far higher authority than ὄψει. The Ionic termination of 2nd person in -ῃ was the usual form in late Attic, but the older termination in -ει was retained in three verbs—βούλει—οἴει—ὄψει, even after -ῃ became common in other instances, hence the variation in the MSS.