decipher
de- (expressing reversal) + cipher
https://gyazo.com/4e97b254d47eef8502e69aaad33ec4b1
source: [フルメタル・パニックの相良宗介がもらったラブレターを全く見当違いに解読するGIF画像｜無料GIF画像検索 GIFMAGAZINE 66034]
verb with object
convert (a text written in code, or a coded signal) into normal language:
〈暗号など〉を解読する(↔ cipher)
e.g. enable the government to decipher coded computer transmissions.
succeed in understanding, interpreting, or identifying (something):
〈難読文字など〉を判読する, 読みとる
e.g. an expression she could not decipher came and went upon his face.
DERIVATIVES
decipherable |dəˈsīf(ə)rəb(ə)l| adjective
decipherment |dəˈsīfərmənt| noun
ORIGIN
early 16th century: from de- (expressing reversal) + cipher1, on the pattern of French déchiffrer.