The word "blackening" is correct and usable in written English.
It is a verb, usually used to refer to the process of an object darkening in color, often from exposure to heat, light, or chemicals. For example, "The blackening of the metal occurred after it was placed in a furnace."
He originally intended to be a pastor, but the sickly, impoverished mining communities were often baffled by his attempts at asceticism and his clumsy efforts to fit in by wearing rags, blackening his face and sleeping on the ground.This over-zealous behaviour soon attracted the attention of the Church, which deemed it inappropriate, and his contract was not renewed.
Mr Stone reports the much-held view that Algeria's military intelligence has infiltrated the GIA, blackening the Islamists' image by helping it to carry out some of its more horrific deeds.
So his supporters have adopted a new tactic: whitewash the general by blackening the president he overthrew in 1973, Salvador Allende.General Pinochet's first notable British supporter was Margaret Thatcher.
Doorstep lending, or home credit as it is termed by the trade, is a counter-cyclical business: in a downturn, bad debts pile up, blackening credit histories.
Despite occasional growls about unnamed enemies blackening the army's name, General Basbug seems quietly to be co-operating with the government in its investigation.Over the years the army, which has toppled four governments since 1960, has been among the biggest obstacles to a stable democracy in Turkey.
Earlier in the spring fire had swept through the new green woods, blackening them.
In Arab countries, the outrage, and mistrust of America, have rarely been greater.These are no longer the unverifiable allegations of former detainees, from Iraq or Afghanistan or in the detention camp at Guantánamo Bay, with an obvious interest in blackening the reputation of their former captors.
Serbians each smoke a lung-blackening 3,323 cigarettes per year, more than any other nationality.
Nokia's climate room is home to ovens and freezers that subject handsets to temperatures ranging from a toe-blackening minus 40C all the way to a furnace-like 80C (an improbable 176F).
Pop-house's ever-blackening raincloud continues to shower down a storm of mostly good but sometimes dire music, and there's no sign of it moving onwards soon.
But this year, China's state media have cast the practice as an environmental faux pas, a sky-blackening indulgence.
