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degrade (v.)
[degrade 词源字典]
late 14c., from Old French
degrader
(12c.) "degrade, deprive (of office, rank, etc.)," from
des-
"down" (see
dis-
) + Latin
gradus
"step" (see
grade
(n.)). Related:
Degraded
;
degrading
.
[degrade etymology, degrade origin, 英语词源]