spleen (n.) 5
impulse, caprice, whim
1H4 V.ii.19 [Worcester to Vernon] A hare-brained Hotspur, governed by a spleen
AYL IV.i.197 [Rosalind to Celia] bastard of Venus ... conceived of spleen
MND I.i.146 [Lysander to Hermia, of lightning] That in a spleen unfolds both heaven and earth [or: temper]
TS III.ii.10 [Katherina to Baptista, of Petruchio] a mad-brain rudesby, full of spleen
Ven 907 [of Venus] A thousand spleens bear her a thousand ways