the.com/optimist

means A person who expects things to turn out well and habitually sees the hopeful side of situations.

from From French optimisme, coined from Latin optimum, 'the best thing' (superlative of bonus, 'good'). The word was invented in the early 1700s by philosophers debating Leibniz's claim that we live in 'the best of all possible worlds' — optimism meant believing existence, on balance, tilts toward the best outcome. 'Pessimist,' its gloomy twin, was built the same way soon after, from Latin pessimus, 'the worst.'