As an adjective blackish
is somewhat black.
As a noun killow is
an old unit of measure for grain, used in constantinople or killow can be an earth of a blackish or deep blue colour.
killow
English
Etymology 1
Noun
(
en noun)
An old unit of measure for grain, used in Constantinople.
Etymology 2
English dialect (kollow) the smut or grime on the backs of chimneys.
Noun
An earth of a blackish or deep blue colour.
- (Woodward)