caret

n. 脱字符
【计】 ^符号

car.et

n.（名词）
A proofreading symbol (^) used to indicate where something is to be inserted in a line of printed or written matter.
脱字号，补注号：一种校对符号（^），用于表示出印刷或手写的字行中需要插入文字的地方

来源：
Latin [there is lacking] [third person sing. present tense of] carôre [to lack] * see kes-
拉丁语 [不足] [] carôre的第三人称单数现在时 [缺乏] *参见 kes-