ablation (n.)youdaoicibaDictYouDict[ablation 词源字典]
early 15c., from Latin ablationem (nominative ablatio), "a taking away," noun of action from past participle stem of auferre "to carry away," from ab- "off" (see ab-) + ferre (past participle latum; see oblate) "to bear."[ablation etymology, ablation origin, 英语词源]