[II.109] humour: moody caprice. The word comes to have this meaning from the theory of the old physiologists that four cardinal humors—blood, choler or yellow bile, phlegm, and melancholy or black bile—determine, by their conditions and proportions, a person's physical and mental qualities. The influence of this theory survives in the application of the terms 'sanguine,' 'choleric,' 'phlegmatic,' and 'melancholy' to disposition and temperament.
[II.110] condition: disposition, temper. So in The Merchant of Venice, I, ii, 143: "If he have the condition of a saint and the complexion of a devil, I had rather he should shrive me than wive me." Cf. the term 'ill-conditioned,' still in use to describe an irascible or quarrelsome disposition. In l. 236 'condition' refers to bodily health.
[II.111] you, Brutus F4 | you Brutus F1F2F3.
[II.112] Dear my lord. This transposition, common in earnest address, is due to close association of possessive adjective and noun.
[II.113] physical: wholesome, salutary. Cf. Coriolanus, I, v, 19.
[II.114] dank | danke F1 | darke F2 | dark F3F4.
[II.115] 'Rheumy' here means that state of the air which causes the unhealthy issue of 'rheum,' a word which was specially used of the fluids that issue from the eyes or mouth. So in Hamlet, II, ii, 529, we have 'bisson rheum' for 'blinding tears.' So in A Midsummer Night's Dream, II, i, 105, Titania speaks of the moon as washing "all the air, That rheumatic diseases do abound."
[II.116] his | hit F1
[II.117] charm F3F4 | charme F1F2 | charge Pope.
[II.118] charm: conjure, appeal by charms. So in Lucrece, l. 1681.