The quality of carrying oneself in a humble manner.(adverb)
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Use "self-effacingly" in a sentence
"BNY Mellon, self-effacingly positioned himself as a support act for"
"(Thus the ghost of the phrase "busman's holiday" hovers self-effacingly in the background.)"
"Deferring self-effacingly to his French colleague Bertron, who prepared a filet of beef accompanied by a tomato-less ketchup at the Dijon demo, the playful Rose treated the crowd to fried green tomatoes."