Superlative form of priestly: most priestly. most priestly.(adjective)
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Use "priestliest" in a sentence
"Carlyle has pictured for us his early home at Ecclefechan on the Border; his father, a stone mason of the highest character; his mother with her frugal, pious ways; the minister, from whom he learned Latin, 'the priestliest man I ever beheld in any ecclesiastical guise.'"