Picture of a person taking a break - Osokuzu no E

...A picture depicting a secret love affair between a man and a woman. In the past, it was called "Osokuzu (a picture of a woman breathing)" or "Okoe (a picture of a fool or a fool)" and was also called "Makura-e" (pillow picture), "Makura no Soshi" (pillow book), "Kachi-e" (victory picture), "Ehon" (a book), "Enpon" (erotic book), "Higashi-ga" (secret picture), "Higaki-ga" (secret picture), "Wajirushi (seal)" or "Warai-e" (laughing picture). Rather than a picture of an obvious secret love affair, erotic pictures showing naked women, such as bathing scenes, were distinguished by being called "Abuna-e" (dangerous pictures). As the "Kokin Chomonshu" (Collected Books of Ancient Times) writes, "Osokuzu pictures drawn by the masters of the past," the history of shunga by professional artists is quite old, and in the Middle Ages, masterpieces of picture scrolls such as "Koshibagaki-zoshi" (13th century) and "Chigo-zoshi" (14th century, late Kamakura period) were produced.

*Some of the terminology used in reference to the "Picture of the Rest" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…男女の秘戯を描いた絵。古くは〈おそくず(偃息図)の絵〉〈おこえ(痴絵，烏滸絵)〉といい，〈枕絵〉〈枕草紙〉〈勝絵（かちえ）〉〈会本（えほん）〉〈艶本（えんぽん）〉〈秘画〉〈秘戯画〉〈ワじるし(印)〉〈笑い絵〉などともいう。あからさまな秘戯の図ではなく，入浴の場面など女性の裸体を見せる好色的な絵は，別に〈あぶな絵〉と称して区別している。《古今著聞集》にも〈ふるき上手どもの書きて候おそくづの絵〉と記すように，落書のようなものではなしに専門の画家による春画の歴史はかなり古く，中世に入れば《小柴垣草紙（こしばがきぞうし）》(13世紀)，《稚児草紙》(14世紀，鎌倉末期)など絵巻物の傑作を生んでいる。…

※「偃息図の絵」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報