onusWiktionary 原文英/ˈəʊnəs/美/ˈoʊnəs/n.负担，责任，义务，过失，耻辱中文释义来自 ECDICT词源链原始印欧语Proto-Indo-European约前 4500–前 2500 年*h₃én(H)os↓ 继承原始意大利语族语Proto-Italic*onos↓ 继承拉丁语Latin约前 75–公元 3 世纪onus↓ 书面借入英语Englishonus词源说明Learned borrowing from Latin onus (literally “burden”).释义名词noun1A legal obligation.2(law) Burden of proof, onus probandi.3Stigma.4Blame.5Responsibility; burden