dark
darkness
cloudiness
dimness
duskiness
gloom
obscureness
obscurity
overcast
shade
shadiness
shadowiness
somberness
sombreness
semidark
chicken pox
clothespress
detoxicant
dingiest
dyspnoea
expectoration
fo'c'sle
forepeak
half-sleep
hemicrania
hemoptysis
hyperkalemia
indispensability
kurdah
mastitis
pertussis
plenty
precursive
swishing