Lewis & Short

aestŭōsus, a, um, adj. [aestus], full of agitation or heat.

  1. I. Very hot: aura, Pac. ap. Prisc. p. 710 P.: aestuosa et pulverulenta via, Cic. Att. 5, 14; Hor. Epod. 16, 62: auster, Plin. 2, 47, 48, § 119: aestuosissimi dies, id. 34, 12, 28, § 116: Syrtes, the burning Syrtes, Hor. C. 1, 22, 5; hence, Oraclum Jovis inter aestuosi, i. e. of Jupiter Ammon in the Libyan desert, Cat. 7, 5.
  2. II. Great ly agitated, in violent ebullition: freta, Hor. C. 2, 7, 16.
    Hence, adv.: aestŭōsē, hotly, impetuously, Plaut. Bacch. 3, 3, 67.
    Comp., Hor. Epod. 3, 18.
    Sup. prob. not used.