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English word gloss over comes from English gloss
gloss (English)
(transitive) To add a gloss to (a text). (countable) A brief explanation in speech or in a written work, including a synonym used with the intent of indicating the meaning of the word to which it is applied. (countable) A brief explanatory note or translation of a foreign, archaic, technical, difficult, complex, or uncommon expression, inserted after the original, in the margin of a [...]
gloss over (English)
(transitive, idiomatic) To cover up a mistake or a crime; to hush up or whitewash.. (transitive, idiomatic) To treat something with less care than it deserves; to ignore.