- degression (n.)
[degression 词源字典]
- late 15c., from Latin degressionem (nominative degressio) "a going down," noun of action from past participle stem of degredi "to go down, march down, descend," from de- "down" (see de-) + gradus "step" (see grade (n.)).[degression etymology, degression origin, 英语词源]