Seal
noun
いんかん
判子 (はんこ) One's Seal, Seal, Personal Seal
印鑑 (いんかん) Seal
封 (ふう) Seal
封印 (ふういん、not on WK) Seal
朱印 (しゅいん) Red Seal
A magical incantation いんかん was used as a Seal.