platitude
Platitude (in the old spelling platitude ) denotes a hackneyed phrase or an unimportant statement .
The word is borrowed from the French noun platitude , derived from the adjective plat ("platt", "flat"; figuratively " banal "). In the German language it is used as an upscale expression for a commonplace or a truism .
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Wiktionary: Platitude - explanations of meanings, word origins, synonyms, translations