1680 elpís (from elp?, “to anticipate, welcome”) – properly, expectation of what is sure (certain); hope.
Hope is something that is easily translated into a ‘feel-good’ emotional entity. It ranks right up there with joy and love.
We use it a lot just like those words too. “I hope so…” is a common phrase used a lot just like telling someone who is just a friend, “I love you…” We know that love is so much more than that, but so is hope.