Thumos is the Greek word meaning fury, spiritedness, wrath, glow, or ardor. In the New Testament it is often translated as rage or wrath but there is more to it than that.
Rather than reducing the meaning to merely wrath, the book of Revelation uses the word as a qualifier for wrath:
From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury [thumou] of the wrath of God the Almighty. Revelation 19:15
And as a qualifier for sexual immorality:
For all nations have drunk the wine of the passion [thumou] of her sexual immorality, and the kings of the earth have committed immorality with her, and the merchants of the earth have grown rich from the power of her luxurious living. Revelation 18:3
“Wrath” in Rev. 19:15 is the Greek orgé which refers to “settled indignation”.
2372 thymós (from thyō, “rush along, getting heated up, breathing violently,” cf. J. Thayer) – properly, passion-driven behavior, i.e. actions emerging out of strong impulses (intense emotion).
When 2372 /thymós (“expressed passion”) is used of people it indicates rage (personal venting of anger, worth). This flaw is completely absent of the Lord expressing (inspiring) intense anger. Accordingly, 2372 (thymós) is used of God’s perfect, holy wrath in Revelation (Rev 14:10,19,15:1, etc.). This anger is directed against sin with intense opposition and without sin.
[Only the Lord exercises righteous wrath, so we must depend solely on Him as we experience (express) anger.]
HELPS Word Studies
Plat. Crat. 419e