名詞 caret:

1. a mark used by an author or editor to indicate where something is to be inserted into a text

car.et

n.（名詞）
A proofreading symbol (^) used to indicate where something is to be inserted in a line of printed or written matter.
脫字號，補注號：一種校對符號（^），用于表示出印刷或手寫的字行中需要插入文字的地方

來源：
Latin [there is lacking] [third person sing. present tense of] carôre [to lack] * see kes-
拉丁語 [不足] [] carôre的第三人稱單數(shù)現(xiàn)在時 [缺乏] *參見 kes-