Source : Webster's Revised Unabridged Dictionary (1913)

Estuate \Es"tu*ate\, v. i. [imp. & p. p. {Estuated}; p. pr. &
   vb. n. {Estuating}.] [L. aestuare to be in violent motion, to
   boil up, burn, fr. aestus boiling or undulating motion, fire,
   glow, heat; akin to Gr.? to burn. See {Ether}.]
   To boil up; to swell and rage; to be agitated. --Bacon.