To paint with limewash (slaked lime in water).(verb)
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Use "limewash" in a sentence
"The interior of the roof is painted with limewash, so it reflects light very well."
"I scrubbed at it and revealed reddish marks like the indelible bloodstains of ghost stories, white limewash-like calcium and hundreds of tiny scratches which each held some hidden secret."
"Walls scraped of limewash by the Victorians have stayed scraped."