Noah Webster
Sultry
SUL'TRY, adjective
1. Very hot, burning and oppressive; as Libya's sultry deserts.
2. Very hot and moist, or hot, close, stagnant and unelastic; as air or the atmosphere. A sultry air is usually enfeebling and oppressive to the human body.
Such as born beneath the burning sky
And sultry sun, betwixt the tropics lie.