sain (v.)youdaoicibaDictYouDict[sain 词源字典]
"to cross oneself; to mark with the sign of the cross," Old English segnian, from Latin signare "to sign" (in Church Latin "to make the sign of the Cross"); see sign (n.). A common Germanic borrowing, cognate with Old Saxon segnon, Dutch zegenen, Old High German seganon, German segnen "to bless," Old Norse signa.[sain etymology, sain origin, 英语词源]