1611 Psalm 51:16 (KJV) uses else as a conjunction as well.

> > Perhaps it will all come back, but now if you love me, give me up . . . else I shall begin to hate you, I feel it.

It’s not being used in the programming if-else sense here. He’s not saying “if you don’t love me, I shall begin to hate you”. He’s saying “if you don’t give me up, I shall begin to hate you”.

  give me up

  I shall begin to hate you
  # i feel it