(每日一词）arcane

arcane /ɑːrˈkeɪn/  adj. 神秘的; 晦涩难懂的; 只有少数人懂的

英文释义: known or understood by only a few people; mysterious or difficult to understand

1) 词源: arc- 盒子, 柜子, 容器; Noah’s Ark 诺亚方舟

2) 后缀: -ane 形容词后缀(mundane)

(古人把秘密文件, 贵重物品放在箱子里, 引申为被锁起来, 被隐藏起来.-很神秘的)

e.g. To outsiders, the world of finance can seem arcane. 对外行来说，金融世界看起来很晦涩。

● arcane rules  晦涩规则

● arcane terminology 专业术语