carte blanche
n.
1707, blank paper, French, literally "white paper" (see card, n. + blank, adj.); figurative sense of "full discretionary power" is from 1766.
| 词汇 | carte blanche | 
| 词根词缀 | Online Etymology Dictionary carte blanche n. 1707, blank paper, French, literally "white paper" (see card, n. + blank, adj.); figurative sense of "full discretionary power" is from 1766. | 
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