G2742–καύσων–kausōn

Saying, These last have done only one hour's work, and you have made them equal to us, who have undergone the hard work of the day and the burning heat.

καύσωνα. kausōna “scorching heat.”

And when you see a south wind blowing, you say, There will be heat; and so it is.

καύσων kausōn “Heat”

For when the sun comes up with its burning heat, the grass gets dry and the grace of its form is gone with the falling flower; so the man of wealth comes to nothing in his ways.

καύσωνι kausōni “burning heat”