as the fire heaves and roars in the closed furnaces

aestŭo, āvi, ātum, 1, v. n. [aestus], to be in agilation or in violent commotion, to move to and fro, to rage, to toss, to boil up.

Lit.

Of fire, to rage, burn:

aestuat ut clausis rapidus fornacibus ignis,

as the fire heaves and roars in the closed furnaces, Verg. G. 4, 263:

tectus magis aestuat ignis,

Ov. M. 4, 64.—Hence,

Of the effect of fire, to be warm or hot, to burn, glow; both objectively, I am warm (Fr. je suis chaud), and subjectively, it is warm to me, I feel warm (Fr. j'ai chaud).

Object.: nunc dum occasio est, dum scribilitae aestuant ( while the cakes are warm) occurrite, Plaut. Poen. prol. 43; Verg. G. 1, 107:

torridus aestuat aër,

glows, Prop. 3, 24, 3; Luc. 1, 16. —

Subject., to feel warmth or heat (weaker than sudare, to sweat, and opp. algere, to be cold, to feel cold;

v. Doed. Syn. 3, 89): Lycurgi leges erudiunt juventutem esuriendo, sitiendo, algendo, aestuando,

Cic. Tusc. 2, 14, 34:

ille cum aestuaret, umbram secutus est,

id. Ac. 2, 22:

sub pondere,

Ov. M. 12, 514; Juv. 3, 103.—

Of the undulating, heaving motion of the sea, to rise in waves or billows (cf. aestus):

Maura unda,

Hor. C. 2, 6, 4:

gurges,

Verg. A. 6, 296.—

Of other things, to have an undulating, waving motion, to be tossed, to heave:

in ossibus umor,

Verg. G. 4, 308:

ventis pulsa aestuat arbor,

Lucr. 5, 1097; Gell. 17, 11, 5. —Of an agitated crowd, Prud. 11, 228.—

Trop.

Of the passions, love, desire, envy, jealousy, etc., to burn with desire, to be in violent, passionate excitement, to be agitated or excited, to be inflamed:

quod ubi auditum est, aestuare (hist. inf.) illi, qui dederant pecuniam,

Cic. Verr. 2, 2, 23:

quae cum dies noctesque aestuans agitaret,

Sall. J. 93:

desiderio alicujus,

Cic. Fam. 7, 18:

invidiā,

Sall. C. 23:

ingens in corde pudor,

Verg. A. 12, 666:

at rex Odrysius in illa Aestuat,

Ov. M. 6, 490 (cf. uri in id. ib. 7, 22;

and ardere in id,

ib. 9, 724); Mart. 9, 23:

aestuat (Alexander) infelix angusto limite mundi (the figure is derived from the swelling and raging of the sea when confined),

Juv. 10, 169; so Luc. 6, 63.—

Esp. in prose, to waver, to vacillate, to hesitate, to be uncertain or in doubt, to be undecided:

dubitatione,

Cic. Verr. 2, 2, 30: quod petiit, spernit; repetit quod nuper omisit;

Aestuat et vitae disconvenit ordine toto,

Hor. Ep. 1, 1, 99:

sic anceps inter utramque animus aestuat,

Quint. 10, 7, 33; Suet. Claud. 4:

aestuante rege,

Just. 1, 10.