spleen (n.) 3
eagerness, spirits, impetuosity
1H6 IV.vi.13 [Talbot to John Talbot] leaden age, / Quickened with youthful spleen and warlike rage
E3 I.i.160 [Prince Edward to King Edward] As cheerful sounding to my youthful spleen / This tumult is
KJ II.i.448 [Hubert to King John and King Philip, of opening the city gates] With swifter spleen than powder can enforce
KJ V.vii.50 [Bastard to King John] I am scalded with ... spleen of speed to see your majesty!