atrabilious: morose, melancholy, or in a like way ill-tempered (from the latin for ‘black bile’)
jonquil: corruption of the bird ‘junco,’ revised to refer to an associated type of narcissus
sough: a rustling or sighing noise; or, to speak or preach whinily; or, a ditch or marsh
mythomane: abbreviation of mythomaniac, similarly graphomane, monomane, etc
imbrangle: also embrangle, to involve in a brangle, a noisy fuss or squabble
afflatus: divine or otherwise miraculous creative inspiration or knowledge
posset: an old cold remedy, spiced milk curdled with beer or wine
bistre: a brownish-yellow pigment derived from wood soot
petroliferous: capable of yielding petroleum, e.g. oil shale
palter: to act or talk carelessly or deceitfully, or to haggle
parclose: a rail or screen dividing parts of a church
cark: care or worry; to carken is to burden